Properties of the Number 65381

Sixty-Five Thousand Three Hundred Eighty-One

Basics

Value: 65380 → 65381 → 65382

Parity: odd

Prime: Yes

Previous Prime: 65371

Next Prime: 65393

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 65381

Divisors: 1, 65381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111111101100101

Octal: 177545

Duodecimal: 31A05

Hexadecimal: ff65

Square: 4274675161

Square Root: 255.69708641280997

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 compositions of n such that the first part is 1 and the second differences of the parts are in {-n,...,n}. A239561

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 542", based on the 5-celled von Neumann neighborhood. A272810

Number of separable partitions of n in which the number of distinct (repeatable) parts is > 1. A325716

Primes not of the form p + 2^k, p prime and k >= 0. A65381