Properties of the Number 22320

Twenty-Two Thousand Three Hundred Twenty

Basics

Value: 22319 → 22320 → 22321

Parity: even

Prime: No

Previous Prime: 22307

Next Prime: 22343

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ² × 5 × 31

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011100110000

Octal: 53460

Duodecimal: 10B00

Hexadecimal: 5730

Square: 498182400

Square Root: 149.3987951758648

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

Numbers k in pairs (j,k), with j <> k +- 1, such that the sum of their cubes is equal to a centered cube number. A352136

Expansion of e.g.f. A(x) = 1/(1 - LambertW(-x)²). A134095

A partition product of Stirling₂ type [parameter k = 4] with biggest-part statistic (triangle read by rows). A157404

Triangle read by rows: T(n,k) = number of closed trails of length k starting and ending at a fixed vertex in the complete undirected graph on n labeled vertices, for n >= 1 and k = 0 .. n(n-1)/2. A357885

Number of genus 2, degree n, simply ramified covers of an elliptic curve. A170991

a(n) = binomial(2·n,n) mod ((n+1)*(n+2)*(n+3)). A65345

a(n) = (3*(2·n - 1)²*((2·n - 1)² + 2) - 2·n + 3)/2 for n > 0. A352758

Number of strongly connected labeled tournaments on n nodes. A54946

Matrix logarithm of triangle A111536. A111541

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal horizontal or vertical neighbors. A264954