7000 (number)

7000 (seven thousand) is a natural number. It is between 6999 and 7001.

← 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
Quaternary	12311204
Quinary	2110005
Senary	522246
Octal	155308
Duodecimal	407412
Hexadecimal	1B5816
Vigesimal	HA020
Base 36	5EG36
Armenian	Ւ

Important numbers 7001–7999

7001 to 7099

• 7021 – triangular number
• 7043 – Sophie Germain prime
• 7056 = 84²
• 7057 – the cuban prime of x = y + 1. It is also a super-prime
• 7073 – Leyland number
• 7079 – a Sophie Germain prime and a safe prime

7100 to 7199

• 7103 – a Sophie Germain prime and a sexy prime with 7109
• 7106 – an octahedral number
• 7109 – a super-prime sexy prime with 7103
• 7121 – a Sophie Germain prime
• 7140 – a triangular number, and a pronic number. Since 7140/2 = 3570, 3570 is also a triangular number and tetrahedral number
• 7151 – Sophie Germain prime
• 7155 – the number of 19-bead necklaces (turning over is allowed) where complements are the same
• 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 – the number of 18-bead binary necklaces with beads of 2 colors where colors can 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, the sum of first 60 primes, the 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 $\sum _{k=1}^{n}n^{floor({\frac {n}{k}})-1}$
• 7823 – Sophie Germain prime, safe prime, balanced prime
• 7825 – magic constant of n × n normal magic square and n-Queens Problem for n = 25. It is 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