Properties of the Number 91640

Ninety-One Thousand Six Hundred Forty

Basics

Value: 91639 → 91640 → 91641

Parity: even

Prime: No

Previous Prime: 91639

Next Prime: 91673

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 29 × 79

Divisors: 1, 2, 4, 5, 8, 10, 20, 29, 40, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10110010111111000

Octal: 262770

Duodecimal: 45048

Hexadecimal: 165f8

Square: 8397889600

Square Root: 302.7209936558745

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

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of (B(x)/x)^k, where B(x) is the g.f. of A213591. A384619

Football league numbers with distinct point totals for a league of n teams playing each other twice where for each match 3 points are awarded to the winning team and 1 to each in the case of a tie. A209467

Number of primes less than 10ⁿ which do not contain the digit 6. A91640