Properties of the Number 86661

Eighty-Six Thousand Six Hundred Sixty-One

Basics

Value: 86660 → 86661 → 86662

Parity: odd

Prime: No

Previous Prime: 86629

Next Prime: 86677

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 9629

Divisors: 1, 3, 9, 9629, 28887, 86661

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101001010000101

Octal: 251205

Duodecimal: 42199

Hexadecimal: 15285

Square: 7510128921

Square Root: 294.38240436547835

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 5 X n binary arrays without the pattern 0 1 diagonally, vertically, antidiagonally or horizontally. A188556

Numbers k such that k·4^k-1 is prime. A86661

Array read by ascending antidiagonals where row n contains the second partial sums of row n of Pascal's triangle. A210489