Properties of the Number 81634

Eighty-One Thousand Six Hundred Thirty-Four

Basics

Value: 81633 → 81634 → 81635

Parity: even

Prime: No

Previous Prime: 81629

Next Prime: 81637

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 ⁴ × 17

Divisors: 1, 2, 7, 14, 17, 34, 49, 98, 119, 238

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10011111011100010

Octal: 237342

Duodecimal: 3B2AA

Hexadecimal: 13ee2

Square: 6664109956

Square Root: 285.71664284741973

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

Antidiagonal sums of table A122888. A122889

a(n) = ∑_d∣n max(d, n/d)⁴. A297843

Numerators of constants A(a) related to the asymptotic LCM of arithmetic progressions a·n+b (a and b coprime). A249225

Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2. A255224

Numbers n such that n | 11ⁿ + 10ⁿ + 9ⁿ + 8ⁿ + 7ⁿ + 6ⁿ + 5ⁿ. A57264

Class 6+ primes. A81634