Properties of the Number 31457

Thirty-One Thousand Four Hundred Fifty-Seven

Basics

Value: 31456 → 31457 → 31458

Parity: odd

Prime: No

Previous Prime: 31397

Next Prime: 31469

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 83 × 379

Divisors: 1, 83, 379, 31457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101011100001

Octal: 75341

Duodecimal: 16255

Hexadecimal: 7ae1

Square: 989542849

Square Root: 177.36121334722537

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

Difference between upper and lower member of a pair of adjacent perfect powers A340700 and A340701, both with exponents > 2. A340706

Row lengths in A261644. A261646

Numbers k such that w(k-2), w(k-1), and w(k) are all odd, where w is A336957. A338070

Number of permutations of {1,...,n} avoiding adjacent step pattern up, down, up, down, up. A177529

Numbers k for which there are no prime numbers in the range (k-4·sqrt(sqrt(k)), k]. A192320

In binary representation: least number, k, which occurs n times in its factorial. A93826

Least k such that k·30ⁿ-1 , k·30ⁿ+1, and 2·k*30ⁿ-1 are prime; that is, twin primes and a Sophie Germain prime. A212956

Number of multisets of nonempty sets of nonempty sets of positive integers with total sum n. A330456

The first 10 digits of the cube root of n contain the digits 0-9. A119517

Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0110-0110-1111 pattern in any orientation. A147357