Properties of the Number 22248

Twenty-Two Thousand Two Hundred Forty-Eight

Basics

Value: 22247 → 22248 → 22249

Parity: even

Prime: No

Previous Prime: 22247

Next Prime: 22259

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ³ × 103

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011101000

Octal: 53350

Duodecimal: 10A60

Hexadecimal: 56e8

Square: 494973504

Square Root: 149.15763473587265

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

Sum of 11 positive 9th powers. A4800

G.f.: ∏_k>=1 (1+x^k)^3·k+1. A255836

Numbers of the form p³*q³*r where p, q, and r are prime. A179688

a(n) is the number k such that 2^2k+1-1 = A000668(n+1). A146768

Irregular table read by rows: Take a nonagon with all diagonals drawn, as in A332421. Then T(n,k) = number of k-sided polygons in that figure for k >= 3. A332427

Numbers with at least two 3s in their prime signature. A109399

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 225", based on the 5-celled von Neumann neighborhood. A279991

Numbers m > 0 that have a divisor d > 1 with binomial(m+d, d) == 1 mod m. A290040

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381570. A381569

Number of 3 X 3 matrices with unit determinant and positive integer entries whose sum is n. A361082