Properties of the Number 66845

Sixty-Six Thousand Eight Hundred Forty-Five

Basics

Value: 66844 → 66845 → 66846

Parity: odd

Prime: No

Previous Prime: 66841

Next Prime: 66851

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 29 × 461

Divisors: 1, 5, 29, 145, 461, 2305, 13369, 66845

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010100011101

Octal: 202435

Duodecimal: 32825

Hexadecimal: 1051d

Square: 4468254025

Square Root: 258.54400012377005

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

Numbers k such that k-th and (k+1)-st term of A038593 differ by 5. A38636

a(n) = (lcm_k=0..n (2^k + 1))/(lcm_k=0..n-1 (2^k + 1)). A66845