Properties of the Number 28457

Twenty-Eight Thousand Four Hundred Fifty-Seven

Basics

Value: 28456 → 28457 → 28458

Parity: odd

Prime: No

Previous Prime: 28447

Next Prime: 28463

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 11 × 13 × 199

Divisors: 1, 11, 13, 143, 199, 2189, 2587, 28457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111100101001

Octal: 67451

Duodecimal: 14575

Hexadecimal: 6f29

Square: 809800849

Square Root: 168.6920270789346

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

Diagonal sums of A104730. A131298

Number of permutations of [n] with exactly 2 descents which avoid the pattern 1324. A98992

Sum of binomial numbers A000332(k+3), with k in the reduced residue system modulo n. A192000

a(n) is the number of rooted maps with n edges and 6 faces on an orientable surface of genus 1. A287046

Fifth column (m=4) of triangle A060098. A60100

Number of perfect matchings in graph P₂ X C₅ X P_n. A28457

Primes of the form n + ∑_i=1..n i!. A36780