Properties of the Number 25636

Twenty-Five Thousand Six Hundred Thirty-Six

Basics

Value: 25635 → 25636 → 25637

Parity: even

Prime: No

Previous Prime: 25633

Next Prime: 25639

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 13 × 17 × 29

Divisors: 1, 2, 4, 13, 17, 26, 29, 34, 52, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110010000100100

Octal: 62044

Duodecimal: 12A04

Hexadecimal: 6424

Square: 657204496

Square Root: 160.11246047700348

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

Let r, s, t be three permutations of the set {1,2,3,..,n}; a(n) = value of ∑_i=1..n r(i)*s(i)*t(i), with r={1,2,3,..,n}; s={n,n-1,..,1} and t={n,n-2,n-4,...,1,...,n-3,n-1}. A70893

Numbers of words on alphabet {0,1,...,7} with no subwords ii, where i is from {0,1,2,3}. A254658

T(2n+4,n), array T as in A055794. A55797

a(n) = (3 + 2·n - 3·n² + 4·n³ - 3*((-1 + n) mod 2))/6. A304487

v(n+1)/v(n), where v=A203701. A203702

Number of (w,x,y) with all terms in {0,...,n} and 2*|w-x| > max(w,x,y) - min(w,x,y). A213045

Number of (2+1) X (n+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i²*x(i,j), i=1..2+1} nondecreasing. A233302

Number of nX2 1..3 arrays containing at least one of each value, all equal values connected, and rows considered as a single number in nondecreasing order. A166776

The primitive abundant numbers k (A071395) arranged by the decreasing values of their abundancy index σ(k)/k. A307098

(Terms in A029665)/2. A51425