Properties of the Number 22156

Twenty-Two Thousand One Hundred Fifty-Six

Basics

Value: 22155 → 22156 → 22157

Parity: even

Prime: No

Previous Prime: 22153

Next Prime: 22157

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 29 × 191

Divisors: 1, 2, 4, 29, 58, 116, 191, 382, 764, 5539

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011010001100

Octal: 53214

Duodecimal: 109A4

Hexadecimal: 568c

Square: 490888336

Square Root: 148.84891669071698

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

Integers that are Rhonda numbers to base 18. A255735

Triangular matrix T that satisfies: T³ - T² + I = SHIFT_LEFT(T), as read by rows. A185620

Numbers n such that P(11·n) is prime where P(n) is the partition number. A113499

Number T(n,k) of permutations of [n] having exactly k consecutive 3-term arithmetic progressions; triangle T(n,k), n>=0, 0<=k<=max(n-2,0), read by rows. A295390

Numbers k whose decimal representation, read as a base-17 value and divided by k, yields an integer. A32565

a(n) = floor((xⁿ - (1-x)ⁿ)/sqrt(2)+ 1/2) where x = (sqrt(2)+1)/2. A136421

Number of binary strings of length n with equal numbers of 00001 and 00010 substrings. A164192

Difference sequence of A020991. A22156