Properties of the Number 22258

Twenty-Two Thousand Two Hundred Fifty-Eight

Basics

Value: 22257 → 22258 → 22259

Parity: even

Prime: No

Previous Prime: 22247

Next Prime: 22259

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 31 × 359

Divisors: 1, 2, 31, 62, 359, 718, 11129, 22258

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011011110010

Octal: 53362

Duodecimal: 10A6A

Hexadecimal: 56f2

Square: 495418564

Square Root: 149.19115255268994

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

Variant on Lucas numbers: a(n) = a(n-1) + 3·a(n-2) with a(0)=2 and a(1)=1. A75118

a(n) = 5·2ⁿ + 3ⁿ + 15. A254368

a(n) is the smallest positive composite that cannot be expressed as the sum of any subset of earlier terms and is not a multiple of any earlier term. A330071

The numbers n in s=n² + (n+1)² that satisfy the requirement for two consecutive squares c,d with c<d with d-c being the sum of two consecutive squares that c<s<d will give s-c and d-s both being squares. A192743

a(n) = 32·n² - 40·n + 10. A343578

Triangle of coefficients T(n,k) in g.f. A(x,y) satisfying ∑_n=-oo..+oo (xⁿ - y·A(x,y))ⁿ = 1 - (y-2)*∑_n>=1 x^n², for n >= 1, as read by rows. A370041

Gaussian binomial coefficients [ n,7 ] for q = 9. A22258