Properties of the Number 66065

Sixty-Six Thousand Sixty-Five

Basics

Value: 66064 → 66065 → 66066

Parity: odd

Prime: No

Previous Prime: 66047

Next Prime: 66067

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 73 × 181

Divisors: 1, 5, 73, 181, 365, 905, 13213, 66065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001000010001

Octal: 201021

Duodecimal: 32295

Hexadecimal: 10211

Square: 4364584225

Square Root: 257.0311265197272

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

Consider the family of multigraphs enriched by the species of endofunctions. Sequence gives number of those multigraphs with n loops and edges. A99709

1/9 the number of (n+1) X 4 0..2 arrays with all 2 X 2 subblocks having the same four values. A184042

Number of (n+3)X11 binary arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock. A188104

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

a(n) = smallest prime q such that in decimal notation the concatenation prime(n)q yields a prime ( = A066064(n)). A66065