Properties of the Number 22565

Twenty-Two Thousand Five Hundred Sixty-Five

Basics

Value: 22564 → 22565 → 22566

Parity: odd

Prime: No

Previous Prime: 22549

Next Prime: 22567

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 4513

Divisors: 1, 5, 4513, 22565

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100000100101

Octal: 54045

Duodecimal: 11085

Hexadecimal: 5825

Square: 509179225

Square Root: 150.2165104108067

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

Number of isomers C_n H_2n without double bonds. A36671

Expansion of ∏_k>=1 1/(1 - (3·k-1)*x^3·k-1). A265820

a(n) = ∑_k=0..n T(n,n+k), T given by A027023. A27035

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 21. A51986

Expansion of 1/((1-x)*(1-5·x)*(1-8·x)*(1-10·x)). A22565