Properties of the Number 22215

Twenty-Two Thousand Two Hundred Fifteen

Basics

Value: 22214 → 22215 → 22216

Parity: odd

Prime: No

Previous Prime: 22193

Next Prime: 22229

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 1481

Divisors: 1, 3, 5, 15, 1481, 4443, 7405, 22215

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101011011000111

Octal: 53307

Duodecimal: 10A33

Hexadecimal: 56c7

Square: 493506225

Square Root: 149.04697246170417

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

Number of vertices in a regular drawing of the complete bipartite graph K_n,n. A331755

Solution of the complementary equation a(n) = a(n-1) + a(n-3) + a(n-4) + b(n-4), where a(0) = 1, a(1) = 2, a(2) = 3, a(3) = 4, b(0) = 5, b(1) = 6, b(2) = 7, b(3) = 8, and (a(n)) and (b(n)) are increasing complementary sequences. A295754

a(n) = -2·a(n-1) -2·a(n-2) + a(n-3). a(0) = -1, a(1) = 1, a(2) = 1. A233831

a(n) is the multiplicative inverse of A008514(n+1) modulo A008514(n). A334137

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 267", based on the 5-celled von Neumann neighborhood. A271085

G.f. A(x) satisfies A(x) = 1 + x⁴ * (A(x) / (1 - x))³. A364403

Number of uud-avoiding rooted non-crossing trees of n+1 vertices with the root 1. A187764

Expansion of g.f. A(x) satisfying A(x)² = (1+x) * A(x·A(x)) with A(0) = 0. A367386

Number of ways to place 4 nonattacking amazons (superqueens) on an n X n toroidal board. A178974

Gaussian binomial coefficients [ n,8 ] for q = 5. A22215