Properties of the Number 66285

Sixty-Six Thousand Two Hundred Eighty-Five

Basics

Value: 66284 → 66285 → 66286

Parity: odd

Prime: No

Previous Prime: 66271

Next Prime: 66293

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 × 491

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 491, 1473

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001011101101

Octal: 201355

Duodecimal: 32439

Hexadecimal: 102ed

Square: 4393701225

Square Root: 257.4587345575986

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

a(n) = 12·a(n-1) - 33·a(n-2) for n > 1; a(0) = 3, a(1) = 21. A163472

a(n) is the minimal difference between primes p and q whose sum is 2n. A66285

Langton's ant on a tiling with vertex types (3.12.12; 3.4.3.12): number of black cells after n moves of the ant when starting on a dodecagon and looking towards an edge where it meets another dodecagon. A322567