Properties of the Number 81297

Eighty-One Thousand Two Hundred Ninety-Seven

Basics

Value: 81296 → 81297 → 81298

Parity: odd

Prime: No

Previous Prime: 81293

Next Prime: 81299

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 3011

Divisors: 1, 3, 9, 27, 3011, 9033, 27099, 81297

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110110010001

Octal: 236621

Duodecimal: 3B069

Hexadecimal: 13d91

Square: 6609202209

Square Root: 285.1262878094547

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

Integers n such that 10ⁿ-57 is prime. A108493

Array T(k,n), read by antidiagonals: T(k,n) = ((k+1)ⁿ⁺¹-(-k)ⁿ⁺¹)/(2k+1). A81297