Properties of the Number 83991

Eighty-Three Thousand Nine Hundred Ninety-One

Basics

Value: 83990 → 83991 → 83992

Parity: odd

Prime: No

Previous Prime: 83987

Next Prime: 84011

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 27997

Divisors: 1, 3, 27997, 83991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100000010111

Octal: 244027

Duodecimal: 40733

Hexadecimal: 14817

Square: 7054488081

Square Root: 289.8120080327936

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

a(n) = prime(2ⁿ) - 2·n. A141088

Members of A083989 whose 10's complement is also a member of A083989. A83991