Properties of the Number 18279

Eighteen Thousand Two Hundred Seventy-Nine

Basics

Value: 18278 → 18279 → 18280

Parity: odd

Prime: No

Previous Prime: 18269

Next Prime: 18287

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 677

Divisors: 1, 3, 9, 27, 677, 2031, 6093, 18279

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011101100111

Octal: 43547

Duodecimal: A6B3

Hexadecimal: 4767

Square: 334121841

Square Root: 135.19985207092498

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) = n³ + n² + n + 1. A53698

Partial sums of sequence (essentially A002378): 1, 2, 6, 12, 20, 30, 42, 56, 72, 90, ... A64999

a(n) = 25·n² + 2·n. A154377

Expansion of ∏_m>=1 (1+q^m)^-27. A22622

a(n) = (26ⁿ - 1)/25. A218729

Number T(n,k) of endofunctions f on [n] satisfying f³(i) = i for all i in [k]; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A245958

The least common multiple of 1+n and 1+n². A281660

Number of distinct terms in row n of A049455. A293165

a(n) = smallest number > a(n-1) such that a(1)*a(2)*...*a(n) + 1 and a(1)*a(2)*...*a(n) - 1 are primes. A51956

"CFK" (necklace, size, unlabeled) transform of 1,3,5,7... A32142