Properties of the Number 22560

Twenty-Two Thousand Five Hundred Sixty

Basics

Value: 22559 → 22560 → 22561

Parity: even

Prime: No

Previous Prime: 22549

Next Prime: 22567

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁵ × 3 × 5 × 47

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100000100000

Octal: 54040

Duodecimal: 11080

Hexadecimal: 5820

Square: 508953600

Square Root: 150.1998668441487

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

Strongly refactorable numbers: numbers n such that if n is divisible by d, it is divisible by the number of divisors of d. A141586

Number of invertible n X n matrices with entries equal to 0 or 1. A55165

T(n,k) is the number of length n+1 0..2·k arrays with the sum of the absolute values of adjacent differences equal to n·k. A249982

Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = 9·x + 2. A257619

Composite numbers k such that k - φ(k) divides σ(k) - k. A68418

Triangle T(n,k) = number of rational (0,1) matrices of rank k (n >= 0, 0 <= k <= n). A64230

Numbers of the form p⁵*q·r*s where p, q, r, and s are distinct primes. A179704

Irregular triangle read by rows: T(n,k) (n>=2, 0<=k<=n) = total number of unbranched k-catapolyheptagons with k pentagons and n-k heptagons. A323850

a(n) = 25·n² + 2·n. A154377

Number of (w,x,y,z) with all terms in {1,...,n} and |w-x|=w+|y-z|. A212685