Properties of the Number 23257

Twenty-Three Thousand Two Hundred Fifty-Seven

Basics

Value: 23256 → 23257 → 23258

Parity: odd

Prime: No

Previous Prime: 23251

Next Prime: 23269

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 × 1789

Divisors: 1, 13, 1789, 23257

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101101011011001

Octal: 55331

Duodecimal: 11561

Hexadecimal: 5ad9

Square: 540888049

Square Root: 152.50245899656832

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

Numbers b > 1 such that the smallest four primes, i.e., 2, 3, 5 and 7 are base-b Wieferich primes. A339533

Number of partitions of n into parts not of the form 15k, 15k+2 or 15k-2. Also number of partitions with 1 part of size 1 and differences between parts at distance 6 are greater than 1. A35956

Number of ON states after n generations of cellular automaton based on f.c.c. lattice with each cell adjacent to its twelve neighbors. A151776

Composites that are the sum of two, three, four and five consecutive composite numbers. A151745

Values of w(k) when w(k-2), w(k-1), and w(k) are all odd, where w is A336957. A338071

Numbers k such that the continued fraction for sqrt(k) has period 89. A20428

a(n) = floor( ∑_{1 <= i < j <= n} ((sqrt(j)-sqrt(i))³) ). A25197

a(n) = 16·n² + 4·n + 1. A82041

Number of (n+1) X (4+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nondecreasing. A263869

Semiprimes k such that k+4, k+6, k+9, k+10 and k+14 are also semiprimes. A360666