Properties of the Number 22439

Twenty-Two Thousand Four Hundred Thirty-Nine

Basics

Value: 22438 → 22439 → 22440

Parity: odd

Prime: No

Previous Prime: 22433

Next Prime: 22441

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 19 × 1181

Divisors: 1, 19, 1181, 22439

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011110100111

Octal: 53647

Duodecimal: 10B9B

Hexadecimal: 57a7

Square: 503508721

Square Root: 149.79652866471906

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

T(n,k)=Unmatched value maps: number of nXk binary arrays indicating the locations of corresponding elements not equal to any horizontal or vertical neighbor in a random 0..1 nXk array. A218765

Unmatched value maps: number of n X 4 binary arrays indicating the locations of corresponding elements not equal to any horizontal or vertical neighbor in a random 0..1 n X 4 array. A218761

Unmatched value maps: number of nX5 binary arrays indicating the locations of corresponding elements not equal to any horizontal or vertical neighbor in a random 0..1 nX5 array. A218762

Conjectured number of irreducible multiple ζ values of depth 7 and weight 2n+19. A22495

Naturally embedded ternary trees having no internal node of label greater than 1. A233389

a(n) = c(n-1) + c(n-3) where c is the sequence of numbers not in a. A22439

Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. A298556