Properties of the Number 64181

Sixty-Four Thousand One Hundred Eighty-One

Basics

Value: 64180 → 64181 → 64182

Parity: odd

Prime: No

Previous Prime: 64171

Next Prime: 64187

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 × 4937

Divisors: 1, 13, 4937, 64181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101010110101

Octal: 175265

Duodecimal: 31185

Hexadecimal: fab5

Square: 4119200761

Square Root: 253.3396929026322

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 numbers m <= 10ⁿ that have a prime divisor greater than sqrt(10ⁿ) (i.e., A006530(m)>sqrt(10ⁿ)). A390602

Smallest number that can be written in n ways as an unordered sum of 3 nonzero triangular numbers. A64181