Properties of the Number 91990

Ninety-One Thousand Nine Hundred Ninety

Basics

Value: 91989 → 91990 → 91991

Parity: even

Prime: No

Previous Prime: 91969

Next Prime: 91997

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 9199

Divisors: 1, 2, 5, 10, 9199, 18398, 45995, 91990

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110011101010110

Octal: 263526

Duodecimal: 4529A

Hexadecimal: 16756

Square: 8462160100

Square Root: 303.2985328022541

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

Binomial transform of A001156. A294529

Number of reduced magic borders of order n (these extend magic squares of order n-2 to order n). A91990