Properties of the Number 81968

Eighty-One Thousand Nine Hundred Sixty-Eight

Basics

Value: 81967 → 81968 → 81969

Parity: even

Prime: No

Previous Prime: 81967

Next Prime: 81971

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ⁴ × 47 × 109

Divisors: 1, 2, 4, 8, 16, 47, 94, 109, 188, 218

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10100000000110000

Octal: 240060

Duodecimal: 3B528

Hexadecimal: 14030

Square: 6718753024

Square Root: 286.3005413896383

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

Second member of Diophantine pair (m,k) that satisfies 6*(m² + m) = k² + k: a(n) = k. A77291

Diagonal sums of number triangle A172380. A172382

Numbers k with property that there is an m = m(k) such that m(m+1)/2 divides k(k+1)/2 and m(k) > m(i) for all i < k. A309423

Duplicate of A076096. A81968