Properties of the Number 22318

Twenty-Two Thousand Three Hundred Eighteen

Basics

Value: 22317 → 22318 → 22319

Parity: even

Prime: No

Previous Prime: 22307

Next Prime: 22343

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 11159

Divisors: 1, 2, 11159, 22318

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011100101110

Octal: 53456

Duodecimal: 10ABA

Hexadecimal: 572e

Square: 498093124

Square Root: 149.39210153150668

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 240-degree spoke (or ray) of a hexagonal spiral of Ulam. A244805

Coefficients in the power series A(x) such that: x·A(x) = ∑_n=-oo..+oo (-1)ⁿ * x^n*(n+1) * A(x)ⁿ. A357221

Triangular array: T(n,1)=T(n,n)=n, for 1<k<n: T(n,k) = concatenation of T(n-1,k-1) and T(n-1,k) in binary representation. A79661

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (-1, 1, -1), (1, 0, 0), (1, 1, 0)}. A150312

Numbers k such that the k-th composition in standard order is empty, a singleton, or has its own run-lengths as a subsequence (not necessarily consecutive) that is already counted. A353431

a(n) = a(n-1) + a(n-2) + 1, with a(0) = 1 and a(1) = 4. A22318

Numbers k such that the k-th composition in standard order (A066099) is empty, a singleton, or has run-lengths that are a consecutive subsequence that is already counted. A353696