Properties of the Number 81989

Eighty-One Thousand Nine Hundred Eighty-Nine

Basics

Value: 81988 → 81989 → 81990

Parity: odd

Prime: No

Previous Prime: 81973

Next Prime: 82003

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 163 × 503

Divisors: 1, 163, 503, 81989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100000001000101

Octal: 240105

Duodecimal: 3B545

Hexadecimal: 14045

Square: 6722196121

Square Root: 286.3372137882186

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

Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 710", based on the 5-celled von Neumann neighborhood. A283702

Numbers k such that 1 + product of digits of k is a square greater than 1. A81989