Properties of the Number 81897

Eighty-One Thousand Eight Hundred Ninety-Seven

Basics

Value: 81896 → 81897 → 81898

Parity: odd

Prime: No

Previous Prime: 81883

Next Prime: 81899

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 27299

Divisors: 1, 3, 27299, 81897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011111111101001

Octal: 237751

Duodecimal: 3B489

Hexadecimal: 13fe9

Square: 6707118609

Square Root: 286.17651895290084

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) is obtained by applying the map k -> composite(k) n times, starting at n. A280327

Integers m such that σ(m) + σ(m+1) + σ(m+2) - σ(m+3) <= 0, where σ is the sum of divisors. A348698

Fourth binomial transform of binomial(n+3, 3). A81897