Properties of the Number 25716

Twenty-Five Thousand Seven Hundred Sixteen

Basics

Value: 25715 → 25716 → 25717

Parity: even

Prime: No

Previous Prime: 25703

Next Prime: 25717

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 2143

Divisors: 1, 2, 3, 4, 6, 12, 2143, 4286, 6429, 8572

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010001110100

Octal: 62164

Duodecimal: 12A70

Hexadecimal: 6474

Square: 661312656

Square Root: 160.36209028320877

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

Triangle T(n,k), 0 <= k <= n, read by rows, defined by: T(0,0) = 1, T(n,k) = 0 if n<k, T(n,0) = T(n-1,0) + T(n-1,1) and for k >= 1: T(n,k) = T(n-1,k-1) + x·T(n-1,k) + T(n-1,k+1) with x = 3. A110877

Number of partitions satisfying 0 < cn(0,5) + cn(2,5) + cn(3,5). A39899

Numbers which are the sum of their proper divisors containing the digit 8. A59467

Numbers that are the sum of seven fourth powers in seven or more ways. A345573

Numbers that are the sum of seven fourth powers in exactly seven ways. A345829

Number of tilings of a 6 X n rectangle using integer-sided square tiles of area > 1. A226370

a(n) = ∑_d∣n σ(d)^n/d. A344061

Number of 9-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions. A187304

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood. A271399

a(n) = A006561(n) - A290447(n). A290465