Properties of the Number 81065

Eighty-One Thousand Sixty-Five

Basics

Value: 81064 → 81065 → 81066

Parity: odd

Prime: No

Previous Prime: 81049

Next Prime: 81071

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 31 × 523

Divisors: 1, 5, 31, 155, 523, 2615, 16213, 81065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110010101001

Octal: 236251

Duodecimal: 3AAB5

Hexadecimal: 13ca9

Square: 6571534225

Square Root: 284.7191598751303

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

Denominators of continued fraction convergents to sqrt(931). A42801

Numbers n such that n² = (1/3)*(n+floor(sqrt(3)*n·floor(sqrt(3)*n))). A81065