Properties of the Number 81256

Eighty-One Thousand Two Hundred Fifty-Six

Basics

Value: 81255 → 81256 → 81257

Parity: even

Prime: No

Previous Prime: 81239

Next Prime: 81281

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 7 × 1451

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 1451, 2902

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011110101101000

Octal: 236550

Duodecimal: 3B034

Hexadecimal: 13d68

Square: 6602537536

Square Root: 285.05438077672125

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

Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = number of alternating anagrams on n letters (of length 2n) which are decomposable into at most k components. A239895

Numbers which have only digits 0 and 1 in bases 3 and 5. A268337

Greatest prime factor of n³ + 1. A81256