Properties of the Number 22961

Twenty-Two Thousand Nine Hundred Sixty-One

Basics

Value: 22960 → 22961 → 22962

Parity: odd

Prime: Yes

Previous Prime: 22943

Next Prime: 22963

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 22961

Divisors: 1, 22961

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100110110001

Octal: 54661

Duodecimal: 11355

Hexadecimal: 59b1

Square: 527207521

Square Root: 151.52887513606112

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

Centered 28-gonal numbers. A195314

Expansion of (-7·x² + 134·x + 1)/(x³ - 99·x² + 99·x - 1). A269548

Number of achiral polyominoes with n cells. A30227

Partial sums of sequence (essentially A002378): 1, 2, 6, 12, 20, 30, 42, 56, 72, 90, ... A64999

G.f.: 1/(1-2x-19x²)^1/2. A98264

Prime time primes (of the form HMMSS with primes H < 24 and MM, SS < 60) such that the corresponding number of seconds after midnight is also prime. A295000

Primes of the form k² + k + 9. A27758

a(n) = 3·a(n-1) + 5 with a(0) = 1. A116952

Final terms of rows of A077321. A77323

Number of finite sets of positive integers whose right half (exclusive) sums to n. A360954