Properties of the Number 28290

Twenty-Eight Thousand Two Hundred Ninety

Basics

Value: 28289 → 28290 → 28291

Parity: even

Prime: No

Previous Prime: 28289

Next Prime: 28297

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 23 × 41

Divisors: 1, 2, 3, 5, 6, 10, 15, 23, 30, 41

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111010000010

Octal: 67202

Duodecimal: 14456

Hexadecimal: 6e82

Square: 800324100

Square Root: 168.1963138716185

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

Partial sums of A000219. A91360

Number of integer-sided pentagons having perimeter n, modulo rotations but not reflections. A293822

Positions where A109890(n) = ∑_{i = 1..n-1} A109890(i). A111315

Same as A007022, but with orientation-reversing isomorphisms forbidden. A113204

Numbers k such that σ(k) - φ(k) is a 4th power. A115918

Expansion of 1/((1-x)(1-x²)(1-x³)(1-x⁵)(1-x⁸)). A28290