Properties of the Number 3257

Three Thousand Two Hundred Fifty-Seven

Basics

Value: 3256 → 3257 → 3258

Parity: odd

Prime: Yes

Previous Prime: 3253

Next Prime: 3259

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 3257

Divisors: 1, 3257

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010111001

Octal: 6271

Duodecimal: 1A75

Hexadecimal: cb9

Square: 10608049

Square Root: 57.0701322935211

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Primes whose digits are primes; primes having only {2, 3, 5, 7} as digits. A19546

Primes congruent to 2 mod 31. A142006

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 10. A31423

Values of n such that L(12) and N(12) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227515

Triangle read by rows: T(n,k) = number of vertices in a "frame" of size n X k (see Comments in A331457 for definition). A332599

Number of vertices formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A331763

Primes q such that 6·q-1 and 6·q+1 are twin primes. Proper subset of A002822. A60212

Primes such that the sum of the predecessor and successor primes is divisible by 11. A112789

Primes such that the sum of the predecessor and successor primes is divisible by 37. A113156

Number of partitions of n such that the number of even parts is a part. A240573