Properties of the Number 81458

Eighty-One Thousand Four Hundred Fifty-Eight

Basics

Value: 81457 → 81458 → 81459

Parity: even

Prime: No

Previous Prime: 81457

Next Prime: 81463

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 13 ² × 241

Divisors: 1, 2, 13, 26, 169, 241, 338, 482, 3133, 6266

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011111000110010

Octal: 237062

Duodecimal: 3B182

Hexadecimal: 13e32

Square: 6635405764

Square Root: 285.40847920130193

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) = n * (n+1)² * (3·n² + 4·n + 2) / 12. A132122

Table T(m,n) = (3^m + 5ⁿ)/2, for m, n = 0, 2, 4, 6, ... read by antidiagonals downwards. A81458