ℕ atory
Play Now

Properties of the Number 22228

Twenty-Two Thousand Two Hundred Twenty-Eight

Basics

Value: 22227 → 22228 → 22229

Parity: even

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 2 × 5557

Divisors: 1, 2, 4, 5557, 11114, 22228

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011010100

Octal: 53324

Duodecimal: 10A44

Hexadecimal: 56d4

Square: 494083984

Square Root: 149.09057649630307

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) = Number of n X k arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 n X k array. A218064
T(n,k)=Number of nXk 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal. A232335
Array read by antidiagonals: T(m,n) = number of maximal matchings in the grid graph Pm X Pn. A288026
Numbers with digits 2 and 8 only. A284922
Number of maximal matchings in the n X n grid graph. A287595
Numbers having four 2's in base 10. A43500
Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 n X 3 array. A218059
Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 7Xn array. A218070
Number of 7Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally, with no adjacent elements equal. A232341
Number of partitions of n with equal number of parts congruent to each of 2 and 3 (mod 4). A35545