Properties of the Number 15285

Fifteen Thousand Two Hundred Eighty-Five

Basics

Value: 15284 → 15285 → 15286

Parity: odd

Prime: No

Previous Prime: 15277

Next Prime: 15287

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 1019

Divisors: 1, 3, 5, 15, 1019, 3057, 5095, 15285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101110110101

Octal: 35665

Duodecimal: 8A19

Hexadecimal: 3bb5

Square: 233631225

Square Root: 123.6325199937298

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

Powers of cube root of 18 rounded up. A18029

Numbers n such that p(7n) is prime, where p(n) is the number of partitions of n. A114167

Number of all polyhedra (tetrahedra of any orientation and octahedra) of any size, formed when intersecting a regular tetrahedron by planes parallel to its sides and dividing its edges into n equal parts. A216175

a(n) = (n³ + 4·n² - n)/2. A162260

Number of arrays of 2n nondecreasing integers in -4..4 with sum zero and equal numbers greater than zero and less than zero. A203287

Numbers m such that each of p=6·m+1, q=6·p+1, r=6·q+1 and s=6·r+1 is prime. A263311

G.f. A(x) satisfies: [xⁿ] A(x)ⁿ⁺¹ = [xⁿ] (1 + x·A(x)ⁿ⁺⁵)ⁿ⁺¹ for n >= 0. A360237

Inverse of 1276th cyclotomic polynomial. A15285