Properties of the Number 25885

Twenty-Five Thousand Eight Hundred Eighty-Five

Basics

Value: 25884 → 25885 → 25886

Parity: odd

Prime: No

Previous Prime: 25873

Next Prime: 25889

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 × 31 × 167

Divisors: 1, 5, 31, 155, 167, 835, 5177, 25885

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010100011101

Octal: 62435

Duodecimal: 12B91

Hexadecimal: 651d

Square: 670033225

Square Root: 160.88815991240622

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

Composite numbers k such that (k+1)*σ(k) is a perfect square. A73586

Number of (n+1) X 7 binary arrays with consecutive windows of two bits considered as a binary number nondecreasing in every row and column. A202333

Positions of remoteness 4 in Beans-Don't-Talk. A5696

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (-1, 1, 0), (0, 1, 1), (1, 0, -1)}. A148448

Composite numbers coprime to 6 such that A179382(n) = A000265(n-1), the odd part of n-1. A225913

T(n,k)=Number of (n+1)X(k+1) binary arrays with consecutive windows of two bits considered as a binary number nondecreasing in every row and column. A202335

A(n, k) is the k-th number b > 1 such that b^prime(n+i-1) == 1 (mod prime(n+i)²) for each i = 0..1, with k running over the positive integers; square array, read by antidiagonals, downwards. A319059

Expansion of 1/((1-x⁵)*(1-x⁷)*(1-x¹¹)). A25885

a(n) = n¹⁰ + 9·n⁹ + 53·n⁸ + 218·n⁷ + 695·n⁶ + 1754·n⁵ + 3572·n⁴ + 5854·n³ + 7510·n² + 6559·n + 34. A270874