Properties of the Number 51808

Fifty-One Thousand Eight Hundred Eight

Basics

Value: 51807 → 51808 → 51809

Parity: even

Prime: No

Previous Prime: 51803

Next Prime: 51817

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁵ × 1619

Divisors: 1, 2, 4, 8, 16, 32, 1619, 3238, 6476, 12952

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100101001100000

Octal: 145140

Duodecimal: 25B94

Hexadecimal: ca60

Square: 2684068864

Square Root: 227.61370784730872

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

a(n) = A063674(n+1) - A063674(n). A224365

Number of positions that are exactly n moves from the starting position in the Pyraminx puzzle. A79744

Numbers with nonzero multiplicative digital root 6. A51808

Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A254384