Properties of the Number 66105

Sixty-Six Thousand One Hundred Five

Basics

Value: 66104 → 66105 → 66106

Parity: odd

Prime: No

Previous Prime: 66103

Next Prime: 66107

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 13 × 113

Divisors: 1, 3, 5, 9, 13, 15, 39, 45, 65, 113

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001000111001

Octal: 201071

Duodecimal: 32309

Hexadecimal: 10239

Square: 4369871025

Square Root: 257.1089263327899

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 p of n such that floor(mean(p)) or ceiling(mean(p)) is a part. A241344

Indices of the maximum increasing subsequences of A066848 and A066849. A66105