Properties of the Number 22287

Twenty-Two Thousand Two Hundred Eighty-Seven

Basics

Value: 22286 → 22287 → 22288

Parity: odd

Prime: No

Previous Prime: 22283

Next Prime: 22291

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 19 × 23

Divisors: 1, 3, 17, 19, 23, 51, 57, 69, 323, 391

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011100001111

Octal: 53417

Duodecimal: 10A93

Hexadecimal: 570f

Square: 496710369

Square Root: 149.28831166571615

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

The denominators of the subdiagonal in the difference table of the Bernoulli numbers. A190339

Denominator of Integral_x=0..+oo Polylog(-n, -x)² for n > 0, with a(0) = 1. A181131

a(n) = n*(11·n² - 5)/6. A4467

Numerators in expansion of (1-x)^3/2. A161200

Least k with precisely n partitions k = x + y satisfying σ(k) = σ(x) + σ(y). A211224

Numbers n such that A234519(n) = n. A234524

Every suffix prime and no 0 digits in base 9 (written in base 9). A24784

Squarefree part of the n-th central binomial coefficient. A56058

Numbers of the form 86+p² (where p is a prime). A138692

Composite numbers m that divide A123855(m-1) = ∑_i=1..m-1 ∑_j=1..m-1 prime(i)^j. A123857