Properties of the Number 90661

Ninety Thousand Six Hundred Sixty-One

Basics

Value: 90660 → 90661 → 90662

Parity: odd

Prime: No

Previous Prime: 90659

Next Prime: 90677

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 17 × 5333

Divisors: 1, 17, 5333, 90661

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001000100101

Octal: 261045

Duodecimal: 44571

Hexadecimal: 16225

Square: 8219416921

Square Root: 301.09965127844305

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

Array read by antidiagonals: Place k points in general position on each side of a regular n-gon and join every pair of the k·n boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of regions in the resulting planar graph. A392228

Numbers n such that prevprime(n!) - n·prevprime((n-1)!) < 0. A90661