Properties of the Number 91669

Ninety-One Thousand Six Hundred Sixty-Nine

Basics

Value: 91668 → 91669 → 91670

Parity: odd

Prime: No

Previous Prime: 91639

Next Prime: 91673

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 29 ² × 109

Divisors: 1, 29, 109, 841, 3161, 91669

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011000010101

Octal: 263025

Duodecimal: 45071

Hexadecimal: 16615

Square: 8403205561

Square Root: 302.768888758406

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 discordant permutations. A561

Strong pseudoprimes to base 41. A20267

a(n) = 109·n². A174339

Expansion of ∏_k>=1 1/(1 - x^k - x^2·k - x^3·k). A320286

a(n) = (prime(n) + prime(n+2))² + prime(n+1)². A348569

a(n) = n² * prime(n). A356868

a(n) = (2^n-1/n!) * ∏_k=1..n-1 (2^k-1). A91669