Properties of the Number 51925

Fifty-One Thousand Nine Hundred Twenty-Five

Basics

Value: 51924 → 51925 → 51926

Parity: odd

Prime: No

Previous Prime: 51913

Next Prime: 51929

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 31 × 67

Divisors: 1, 5, 25, 31, 67, 155, 335, 775, 1675, 2077

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100101011010101

Octal: 145325

Duodecimal: 26071

Hexadecimal: cad5

Square: 2696205625

Square Root: 227.87057730211683

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

Structured triakis octahedral numbers (vertex structure 4). A100171

Numbers for which the harmonic mean of the nontrivial unitary divisors is an integer. A335269

G.f. A(x) satisfies A(x) = 1 + x·A(x)/A(-x·A(x))⁴. A385016

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A385016. A385020

a(n) = n*(2·n+5)*(n-1)/6. A51925