Properties of the Number 68540

Sixty-Eight Thousand Five Hundred Forty

Basics

Value: 68539 → 68540 → 68541

Parity: even

Prime: No

Previous Prime: 68539

Next Prime: 68543

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 23 × 149

Divisors: 1, 2, 4, 5, 10, 20, 23, 46, 92, 115

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101110111100

Octal: 205674

Duodecimal: 337B8

Hexadecimal: 10bbc

Square: 4697731600

Square Root: 261.8014514856631

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 parts of the n-th subshell of the head of the last section of the set of partitions of any odd integer >= 2n+1. A182993

Numbers k such that φ(k) = bigomega(k)*τ(k)². A68540