Properties of the Number 18260

Eighteen Thousand Two Hundred Sixty

Basics

Value: 18259 → 18260 → 18261

Parity: even

Prime: No

Previous Prime: 18257

Next Prime: 18269

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 11 × 83

Divisors: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011101010100

Octal: 43524

Duodecimal: A698

Hexadecimal: 4754

Square: 333427600

Square Root: 135.12956745287096

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

Expansion of 1/(1 - x - x² + x³ - x⁷ + x⁹ - x¹¹). A147663

Number of diagonal polyominoes with n cells. A56841

Number of solid partitions asymmetric under rotation operation. A96576

a(n) = 4·p(n), where p(n) is the number of partitions of n. A299474

Totient numbers k such that 10·k is a nontotient. A350320

Infinitary perfect totient numbers: numbers that equal to the sum of their iterated infinitary totient function (A091732). A330273

a(n) = n*(7·n² - 3·n - 1)/3. A214659

a(n) = 961·n + 1. A158414

The difference between the largest part and the smallest part summed over all those partitions of n in which every integer from the smallest part to the largest part occurs. A117471

a(n) = 3ⁿ - 6·binomial(n,4) - 6·binomial(n,3) - 4·binomial(n,2) - 2·n - 1. A385726