7000 (number)

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← 6999 7000 7001 →
List of numbers Integers ← 0 1k 2k 3k 4k 5k 6k 7k 8k 9k →
Cardinal	seven thousand
Ordinal	7000th (seven thousandth)
Factorization	23 × 53 × 7
Greek numeral	,Ζ´
Roman numeral	VMM, or VII
Unicode symbol(s)	VMM, vmm, VII, vii
Binary	11011010110002
Ternary	1001210213
Senary	522246
Octal	155308
Duodecimal	407412
Hexadecimal	1B5816
Armenian	Ւ

7000 (seven thousand) is the natural number following 6999 and preceding 7001.

Selected numbers in the range 7001–7999

7001 to 7099

• 7021 – triangular number
• 7043 – Sophie Germain prime
• 7056 = 842
• 7057 – cuban prime of the form x = y + 1, super-prime
• 7073 – Leyland number
• 7079 – Sophie Germain prime, safe prime

7100 to 7199

• 7103 – Sophie Germain prime, sexy prime with 7109
• 7106 – octahedral number
• 7109 – super-prime, sexy prime with 7103
• 7121 – Sophie Germain prime
• 7140 – triangular number, also a pronic number and hence 7140/2 = 3570 is also a triangular number, tetrahedral number
• 7151 – Sophie Germain prime
• 7155 – number of 19-bead necklaces (turning over is allowed) where complements are equivalent
• 7187 – safe prime
• 7192 – weird number
• 7193 – Sophie Germain prime, super-prime

7200 to 7299

• 7200 – pentagonal pyramidal number
• 7211 – Sophie Germain prime
• 7225 = 852, centered octagonal number
• 7230 = 362 + 372 + 382 + 392 + 402 = 412 + 422 + 432 + 442
• 7246 – centered heptagonal number
• 7247 – safe prime
• 7260 – triangular number
• 7267 – decagonal number
• 7272 – Kaprekar number
• 7283 – super-prime
• 7291 – nonagonal number

7300 to 7399

• 7316 – number of 18-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
• 7338 – Fine number.
• 7349 – Sophie Germain prime
• 7351 – super-prime, cuban prime of the form x = y + 1
• 7381 – triangular number
• 7385 – Keith number
• 7396 = 862

7400 to 7499

• 7417 – super-prime
• 7433 – Sophie Germain prime
• 7471 – centered cube number
• 7481 – super-prime, cousin prime

7500 to 7599

• 7503 – triangular number
• 7523 – balanced prime, safe prime, super-prime
• 7537 – prime of the form 2p-1
• 7541 – Sophie Germain prime
• 7559 – safe prime
• 7560 – highly composite number
• 7561 – Markov prime
• 7568 – centered heptagonal number
• 7569 = 872, centered octagonal number
• 7583 – balanced prime

7600 to 7699

• 7607 – safe prime, super-prime
• 7612 – decagonal number
• 7614 – nonagonal number
• 7626 – triangular number
• 7643 – Sophie Germain prime, safe prime
• 7647 – Keith number
• 7649 – Sophie Germain prime, super-prime
• 7691 – Sophie Germain prime
• 7699 – super-prime, emirp, sum of first 60 primes, first prime above 281 to be the sum of the first k primes for some k

7700 to 7799

• 7703 – safe prime
• 7710 = number of primitive polynomials of degree 17 over GF(2)
• 7714 – square pyramidal number
• 7727 – safe prime
• 7739 – member of the Padovan sequence
• 7741 = number of trees with 15 unlabeled nodes
• 7744 = 882, square palindrome not ending in 0
• 7750 – triangular number
• 7753 – super-prime
• 7770 – tetrahedral number
• 7776 = 65, number of primitive polynomials of degree 18 over GF(2)
• 7777 – Kaprekar number, repdigit

7800 to 7899

• 7810 – ISO/IEC 7810 is the ISO's standard for physical characteristics of identification cards
• 7821 – n=6 value of ∑ k = 1 n n f l o o r ( n k ) − 1 {\displaystyle \sum _{k=1}^{n}n^{floor({\frac {n}{k}})-1}}
• 7823 – Sophie Germain prime, safe prime, balanced prime
• 7825 – magic constant of n × n normal magic square and n-Queens Problem for n = 25. Also the first counterexample in the Boolean Pythagorean triples problem.
• 7841 – Sophie Germain prime, balanced prime, super-prime
• 7875 – triangular number
• 7883 – Sophie Germain prime, super-prime
• 7897 – centered heptagonal number

7900 to 7999

• 7901 – Sophie Germain prime
• 7909 – Keith number
• 7912 – weird number
• 7919 – 1000th prime number
• 7920 – the order of the Mathieu group M11, the smallest sporadic simple group
• 7921 = 892, centered octagonal number
• 7944 – nonagonal number
• 7957 – super-Poulet number
• 7965 – decagonal number
• 7979 – highly cototient number

Prime numbers

There are 107 prime numbers between 7000 and 8000:

7001, 7013, 7019, 7027, 7039, 7043, 7057, 7069, 7079, 7103, 7109, 7121, 7127, 7129, 7151, 7159, 7177, 7187, 7193, 7207, 7211, 7213, 7219, 7229, 7237, 7243, 7247, 7253, 7283, 7297, 7307, 7309, 7321, 7331, 7333, 7349, 7351, 7369, 7393, 7411, 7417, 7433, 7451, 7457, 7459, 7477, 7481, 7487, 7489, 7499, 7507, 7517, 7523, 7529, 7537, 7541, 7547, 7549, 7559, 7561, 7573, 7577, 7583, 7589, 7591, 7603, 7607, 7621, 7639, 7643, 7649, 7669, 7673, 7681, 7687, 7691, 7699, 7703, 7717, 7723, 7727, 7741, 7753, 7757, 7759, 7789, 7793, 7817, 7823, 7829, 7841, 7853, 7867, 7873, 7877, 7879, 7883, 7901, 7907, 7919, 7927, 7933, 7937, 7949, 7951, 7963, 7993

References

1. ^ a b "Sloane's A002407 : Cuban primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
2. ^ "Sloane's A076980 : Leyland numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
3. ^ "Sloane's A005900 : Octahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
4. ^ a b "Sloane's A000292 : Tetrahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
5. ^ Sloane, N. J. A. (ed.). "Sequence A000011 (Number of n-bead necklaces (turning over is allowed) where complements are equivalent)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
6. ^ a b "Sloane's A006037 : Weird numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
7. ^ "Sloane's A002411 : Pentagonal pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
8. ^ a b "Sloane's A016754 : Odd squares: a(n) = (2n+1)^2. Also centered octagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
9. ^ "Sloane's A069099 : Centered heptagonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
10. ^ a b c "Sloane's A001107 : 10-gonal (or decagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
11. ^ a b "Sloane's A006886 : Kaprekar numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
12. ^ Sloane, N. J. A. (ed.). "Sequence A000013 (Definition (1): Number of n-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
13. ^ Sloane, N. J. A. (ed.). "Sequence A000957 (Fine's sequence (or Fine numbers): number of relations of valence > 0 on an n-set; also number of ordered rooted trees with n edges having root of even degree)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2022-06-01.
14. ^ a b c "Sloane's A007629 : Repfigit (REPetitive FIbonacci-like diGIT) numbers (or Keith numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
15. ^ "Sloane's A005898 : Centered cube numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
16. ^ "Sloane's A002182 : Highly composite numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
17. ^ "Sloane's A002559 : Markoff (or Markov) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
18. ^ Sloane, N. J. A. (ed.). "Sequence A011260 (Number of primitive polynomials of degree n over GF(2))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
19. ^ "Sloane's A000330 : Square pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
20. ^ "Sloane's A000931 : Padovan sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-11.
21. ^ Sloane, N. J. A. (ed.). "Sequence A000055 (Number of trees with n unlabeled nodes)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
22. ^ Sloane, N. J. A. (ed.). "Sequence A011260 (Number of primitive polynomials of degree n over GF(2))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
23. ^ Sloane, N. J. A. (ed.). "Sequence A010785 (Repdigit numbers, or numbers whose digits are all equal)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
24. ^ "7919". The Prime Pages. University of Tennessee. Retrieved April 25, 2017.
25. ^ "Sloane's A050217 : Super-Poulet numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
26. ^ Sloane, N. J. A. (ed.). "Sequence A038823 (Number of primes between n*1000 and (n+1)*1000)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
27. ^ Stein, William A. (10 February 2017). "The Riemann Hypothesis and The Birch and Swinnerton-Dyer Conjecture". wstein.org. Retrieved 6 February 2021.

v t e Integers
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700s 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799
800s 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899
900s 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999
≥1000 1000 2000 3000 4000 5000 6000 7000 8000 9000 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000 1,000,000 10,000,000 100,000,000 1,000,000,000