Properties of the Number 66085

Sixty-Six Thousand Eighty-Five

Basics

Value: 66084 → 66085 → 66086

Parity: odd

Prime: No

Previous Prime: 66083

Next Prime: 66089

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 13217

Divisors: 1, 5, 13217, 66085

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000001000100101

Octal: 201045

Duodecimal: 322B1

Hexadecimal: 10225

Square: 4367227225

Square Root: 257.07002936943076

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

1/9 the number of (n+1) X 5 0..2 arrays with all 2 X 2 subblocks having the same four values. A184043

T(n,k) = 1/9 the number of (n+1) X (k+1) 0..2 arrays with all 2 X 2 subblocks having the same four values. A184048

Orders of non-supersolvable groups. A66085

Number of nX5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 0 vertically. A207497