Properties of the Number 51358

Fifty-One Thousand Three Hundred Fifty-Eight

Basics

Value: 51357 → 51358 → 51359

Parity: even

Prime: No

Previous Prime: 51349

Next Prime: 51361

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 25679

Divisors: 1, 2, 25679, 51358

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100010011110

Octal: 144236

Duodecimal: 2587A

Hexadecimal: c89e

Square: 2637644164

Square Root: 226.6230350163019

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

Numbers n for which there are exactly seven k such that n = k + (product of nonzero digits of k). A96928

Numbers n such that sopfr(n-1) | (n+sopfr(n+1)) and sopfr(n+1) | (n+sopfr(n-1)), where sopfr = A001414 (sum of prime factors with repetition). A196994

Semiprime numbers that are sandwiched between products of exactly 4 distinct primes (or tetraprimes). A375964

Start with a(0) = a(1) = 1. If a(n) = n is the rightmost term defined so far, let a(m) = m := n + a(n-1). If the terms between a(n) and a(m) are undefined, let a(n+1) = a(n) + a(m) and if m > n+1, a(m-1) = a(n+1) + a(m). A333375

(Terms in A028279)/2. A51358