Properties of the Number 68665

Sixty-Eight Thousand Six Hundred Sixty-Five

Basics

Value: 68664 → 68665 → 68666

Parity: odd

Prime: No

Previous Prime: 68659

Next Prime: 68669

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 × 31 × 443

Divisors: 1, 5, 31, 155, 443, 2215, 13733, 68665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000110000111001

Octal: 206071

Duodecimal: 338A1

Hexadecimal: 10c39

Square: 4714882225

Square Root: 262.04007327124606

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

Irregular triangle read by rows: row n gives number of connected graphs on n nodes with forcing number k (n>=1, k>=0). A256980

a(1) = 3; a(n) = smallest palindromic multiple of a(n-1). A68665