Properties of the Number 81140

Eighty-One Thousand One Hundred Forty

Basics

Value: 81139 → 81140 → 81141

Parity: even

Prime: No

Previous Prime: 81131

Next Prime: 81157

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 4057

Divisors: 1, 2, 4, 5, 10, 20, 4057, 8114, 16228, 20285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110011110100

Octal: 236364

Duodecimal: 3AB58

Hexadecimal: 13cf4

Square: 6583699600

Square Root: 284.85083815920217

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

Number of partitions of n into distinct partition numbers. A68006

10th binomial transform of (0,0,1,0,0,0,...). A81140