Properties of the Number 81008

Eighty-One Thousand Eight

Basics

Value: 81007 → 81008 → 81009

Parity: even

Prime: No

Previous Prime: 81001

Next Prime: 81013

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 61 × 83

Divisors: 1, 2, 4, 8, 16, 61, 83, 122, 166, 244

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011110001110000

Octal: 236160

Duodecimal: 3AA68

Hexadecimal: 13c70

Square: 6562296064

Square Root: 284.61904363552344

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

Numbers k such that 13^k - 2 is a prime. A128457

a(n) = 441·n² - 394·n + 88. A157734

a(n) = Fibonacci(4n+2) - 1, or Fibonacci(2n)*Lucas(2n+2). A81008