Properties of the Number 18051

Eighteen Thousand Fifty-One

Basics

Value: 18050 → 18051 → 18052

Parity: odd

Prime: No

Previous Prime: 18049

Next Prime: 18059

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 547

Divisors: 1, 3, 11, 33, 547, 1641, 6017, 18051

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100011010000011

Octal: 43203

Duodecimal: A543

Hexadecimal: 4683

Square: 325838601

Square Root: 134.35400998853737

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 distinct regions among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass. A359046

a(n) = Sum of (Y(2,p)²) over the partitions p of n, Y(2,p) = number of part sizes with multiplicity 2 or greater in p. A302347

a(n) = 50·n² + 1. A157916

Number of -2..2 arrays of n elements with first, second and third differences also in -2..2. A202118

The number of skew sum indecomposable permutations which avoid the patterns 3124 and 4312. A228771

a(1) = 13; for n > 1, if a(n-1) is even, then a(n) = a(n-1)/2; otherwise, a(n) = a(n-1) + prime(a(n-1)). A358166

Solutions to A096509[x]=6; number of prime-powers [including primes] in the neighborhood of·with Ceiling[Log[x]] radius equals 6. A96517

Numerators of coefficients in Taylor series expansion of sqrt(m(x)) where m(x) is g.f. for Motzkin numbers A001006. A261421

T(n,k) is the number of -k..k arrays of n elements with first, second and third differences also in -k..k. A202124

Powers of fourth root of 3 rounded down. A18051