Properties of the Number 81304

Eighty-One Thousand Three Hundred Four

Basics

Value: 81303 → 81304 → 81305

Parity: even

Prime: No

Previous Prime: 81299

Next Prime: 81307

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 10163

Divisors: 1, 2, 4, 8, 10163, 20326, 40652, 81304

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110110011000

Octal: 236630

Duodecimal: 3B074

Hexadecimal: 13d98

Square: 6610340416

Square Root: 285.13856280762866

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

Difference between larger and smaller terms of n-th amicable pair. A66539

Difference between the larger and smaller terms of the n-th amicable pair (x,y) given in A259933. A275469

Number of numbers m <= n with prime factors less than 2·spf(m), where spf(m) is the smallest prime factor of m (A020639). A81304