Properties of the Number 22498

Twenty-Two Thousand Four Hundred Ninety-Eight

Basics

Value: 22497 → 22498 → 22499

Parity: even

Prime: No

Previous Prime: 22483

Next Prime: 22501

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 1607

Divisors: 1, 2, 7, 14, 1607, 3214, 11249, 22498

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011111100010

Octal: 53742

Duodecimal: 1102A

Hexadecimal: 57e2

Square: 506160004

Square Root: 149.9933331851786

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

a(n) = prime(n)*prime(n-1) - 1. A23515

Product of twin primes minus 1. A120875

Constant term of the reduction by x²->x+1 of the polynomial p(n,x) defined below in Comments. A192752

a(n) = 2·A276086(n) - A276086(A001065(n)), where A276086 is the primorial base exp-function, and A001065 is the sum of proper divisors of n. A379494

Positive integers m such that none of the four consecutive numbers m, m+1, m+2, m+3 can be written as p² + q with p and q both prime. A258661

G.f.: ∑_n>=1 ∑_k=0..n binomial(n,k) * x^k² * (xⁿ - x^k)^n-k, ignoring the constant term. A292808

Conjectured number of irreducible multiple ζ values of depth 10 and weight 2n+28. A22498