Properties of the Number 15281

Fifteen Thousand Two Hundred Eighty-One

Basics

Value: 15280 → 15281 → 15282

Parity: odd

Prime: No

Previous Prime: 15277

Next Prime: 15287

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7 × 37 × 59

Divisors: 1, 7, 37, 59, 259, 413, 2183, 15281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101110110001

Octal: 35661

Duodecimal: 8A15

Hexadecimal: 3bb1

Square: 233508961

Square Root: 123.61634196173254

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

Cardinality of set of sets of parts of all partitions of n. A88314

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements. A251113

9-step Fibonacci sequence starting with 0,0,0,1,0,0,0,0,0. A251750

Number of ways to write n as an ordered sum of 5 prime powers (including 1). A341134

Compound filter: a(n) = P(σ(n), σ(2n)), where P(n,k) is sequence A000027 used as a pairing function, and σ is the sum of divisors (A000203). A286359

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 350", based on the 5-celled von Neumann neighborhood. A287755

E.g.f. satisfies: A(x/A(x)⁴) = exp(x). A144684

Odd composite integers m such that U(m)² == 1 (mod m) and V(m) == 6 (mod m), where U(m) and V(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=6 and b=-1, respectively. A337629

Setwise difference A340150 \ A340076. A340151

Sum of squares of digits of n is equal to the largest prime factor of n reversed, where the largest prime factor is not a palindrome. A74303