Properties of the Number 22520

Twenty-Two Thousand Five Hundred Twenty

Basics

Value: 22519 → 22520 → 22521

Parity: even

Prime: No

Previous Prime: 22511

Next Prime: 22531

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 563

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 563, 1126

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011111111000

Octal: 53770

Duodecimal: 11048

Hexadecimal: 57f8

Square: 507150400

Square Root: 150.06665185843255

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 partitions of 2n into parts such that the largest multiplicity equals n. A232697

a(n) = n*(14·n + 3). A195025

a(n) = ∑_k=1..n φ(gcd(k, n))^{n/gcd(k, n}). A342541

a(n) = 225n² + 2n. A158228

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 15. A31693

Row squared sums of triangle A114700: a(n) = ∑_k=0..n A114700(n,k)². A116467

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 337", based on the 5-celled von Neumann neighborhood. A271287

Describe previous term from the right (method B - initial term is 9). A22520

Number of nX4 0..1 arrays with every element equal to 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero. A298066