Properties of the Number 22680

Twenty-Two Thousand Six Hundred Eighty

Basics

Value: 22679 → 22680 → 22681

Parity: even

Prime: No

Previous Prime: 22679

Next Prime: 22691

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ⁴ × 5 × 7

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100010011000

Octal: 54230

Duodecimal: 11160

Hexadecimal: 5898

Square: 514382400

Square Root: 150.5988047761336

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

a(n) = n*(n+1)²/2. A6002

A certain partition array in Abramowitz-Stegun order (A-St order), called M₃(6). A134278

Numerator of the harmonic mean of the first n positive integers. A102928

Smallest k such that σ(x) = k has exactly n solutions. A7368

Square table read by downward antidiagonals: n-th row has e.g.f. (1-9·x)^-n/9. A392037

Numbers which can be expressed as the product of a number and its reversal in at least two different ways. A66531

a(n) = (2n+1)! / 2ⁿ. A7019

Coefficient table of numerator polynomials of o.g.f.s for partial sums of powers of positive integers. A196837

Bi-unitary harmonic numbers. A286325

Exponential generating function is tanh(log(1+x)). A9775