Properties of the Number 22166

Twenty-Two Thousand One Hundred Sixty-Six

Basics

Value: 22165 → 22166 → 22167

Parity: even

Prime: No

Previous Prime: 22159

Next Prime: 22171

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 11083

Divisors: 1, 2, 11083, 22166

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011010010110

Octal: 53226

Duodecimal: 109B2

Hexadecimal: 5696

Square: 491331556

Square Root: 148.8825040090339

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) = ∑_d∣n A007955(d) where A007955(m) = product of divisors of m. A175317

a(n) = prime(n)² - n. A182174

a(n) is the number of n-cell polyiamonds (triangular polyominoes) with perimeter n+2. A131481

Triangle of coefficients of polynomials v(n,x) jointly generated with A210755; see the Formula section. A210756

Numbers n such that n¹⁰²⁴ + (n+1)¹⁰²⁴ is prime. A274234

Coordination sequence for Cr3Si, Cr position. A9928

Square root of A030693. A30694

a(n) = 280·C(n,9)+10·C(n,6)+6·C(n,4)+C(n,3)+1 where C = binomial. A144841

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite DOH = Dodecasil 1H [Si34O68].qR starting with a T2 atom. A19114

T(2n,n+2), T given by A026780. A26895