7000 (number)
7000 is the natural number following 6999 and preceding 7001.
Selected numbers in the range 7001–7999
7001 to 7099
7021 – triangular number7043 – Sophie Germain prime7056 = 8427057 – cuban prime of the form x = y + 1, super-prime7073 – Leyland number7079 – Sophie Germain prime, safe prime
7100 to 7199
7103 – Sophie Germain prime, sexy prime with 71097106 – octahedral number7109 – super-prime, sexy prime with 71037121 – Sophie Germain prime7140 – triangular number, also a pronic number and hence = 3570 is also a triangular number, tetrahedral number7141 – sum of the first 58 primes, star number7151 – Sophie Germain prime7155 – number of 19-bead necklaces where complements are equivalent7187 – safe prime7192 – weird number7193 – Sophie Germain prime, super-prime
7200 to 7299
7200 – pentagonal pyramidal number7211 – Sophie Germain prime7225 = 852, centered octagonal number7230 = 362 + 372 + 382 + 392 + 402 = 412 + 422 + 432 + 4427246 – centered heptagonal number7247 – safe prime7260 – triangular number7267 – decagonal number7272 – Kaprekar number7283 – super-prime7291 – nonagonal number
7300 to 7399
7310 – pronic number7316 – number of 18-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed7338 – Fine number.7349 – Sophie Germain prime7351 – super-prime, cuban prime of the form x = y + 17381 – triangular number7385 – Keith number7396 = 862
7400 to 7499
7417 – super-prime7418 – sum of the first 59 primes7433 – Sophie Germain prime7471 – centered cube number7481 – super-prime, cousin prime7482 – pronic number
7500 to 7599
7503 – triangular number7523 – balanced prime, safe prime, super-prime7537 – prime of the form 2p-17541 – Sophie Germain prime7559 – safe prime7560 – the 20th highly composite number7561 – Markov prime, star prime7568 – centered heptagonal number7569 = 872, centered octagonal number7583 – balanced prime
7600 to 7699
7607 – safe prime, super-prime7612 – decagonal number7614 – nonagonal number7626 – triangular number7643 – Sophie Germain prime, safe prime7647 – Keith number7649 – Sophie Germain prime, super-prime7656 – pronic number7691 – Sophie Germain prime7699 – super-prime, emirp, sum of the first 60 primes, first prime above 281 to be the sum of the first k primes for some k
7700 to 7799
7703 – safe prime7710 = number of primitive polynomials of degree 17 over GF7714 – square pyramidal number7727 – safe prime7739 – member of the Padovan sequence7741 = number of trees with 15 unlabeled nodes7744 = 882, square palindrome not ending in 07750 – triangular number7753 – super-prime7770 – tetrahedral number7776 = 65, number of primitive polynomials of degree 18 over GF7777 – Kaprekar number, repdigit
7810 – ISO/IEC 7810 is the ISO's standard for physical characteristics of identification cards7821 – n=6 value of 7823 – Sophie Germain prime, safe prime, balanced prime7825 – 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.7832 – pronic number7841 – Sophie Germain prime, balanced prime, super-prime7875 – triangular number7883 – Sophie Germain prime, super-prime7897 – centered heptagonal number
7900 to 7999
7901 – Sophie Germain prime7909 – Keith number7912 – weird number7919 – 1000th prime number7920 – the order of the Mathieu group M11, the smallest sporadic simple group7921 = 892, centered octagonal number7944 – nonagonal number7957 – super-Poulet number7965 – decagonal number7979 – highly cototient number7982 – sum of the first 61 primes7993 – star prime, reverse superstar prime
Prime numbers
There are 107 prime numbers between 7000 and 8000: