Properties of the Number 81303

Eighty-One Thousand Three Hundred Three

Basics

Value: 81302 → 81303 → 81304

Parity: odd

Prime: No

Previous Prime: 81299

Next Prime: 81307

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 41 × 661

Divisors: 1, 3, 41, 123, 661, 1983, 27101, 81303

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110110010111

Octal: 236627

Duodecimal: 3B073

Hexadecimal: 13d97

Square: 6610177809

Square Root: 285.136809268814

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 for which the sum of digits of σ(k) = the product of digits of σ(k). A277217

Odd numbers k such that φ(k) = φ(k+2), where φ is the Euler totient function (A000010). A333741

gpf(m) - 2·spf(m), where gpf(m) is the greatest and spf(m) is the smallest prime factor of m (A006530, A020639). A81303