Properties of the Number 51728

Fifty-One Thousand Seven Hundred Twenty-Eight

Basics

Value: 51727 → 51728 → 51729

Parity: even

Prime: No

Previous Prime: 51721

Next Prime: 51749

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 53 × 61

Divisors: 1, 2, 4, 8, 16, 53, 61, 106, 122, 212

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1100101000010000

Octal: 145020

Duodecimal: 25B28

Hexadecimal: ca10

Square: 2675785984

Square Root: 227.437903613272

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

Convolution triangle, read by rows, where diagonals are successive self-convolutions of A118346. A118349

Semi-diagonal (two rows below central terms) of pendular triangle A118345 and equal to the self-convolution cube of the central terms (A118346). A118348

Expansion of e.g.f. ( ∏_k>0 (1+x^k)^1/k )^x. A356564

Number of maximal independent sets in the 3 X n king graph. A332348

Number of 2 X n 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. A281766

Smallest number at distance 2n from nearest prime. A51728