Properties of the Number 81069

Eighty-One Thousand Sixty-Nine

Basics

Value: 81068 → 81069 → 81070

Parity: odd

Prime: No

Previous Prime: 81049

Next Prime: 81071

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 61 × 443

Divisors: 1, 3, 61, 183, 443, 1329, 27023, 81069

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110010101101

Octal: 236255

Duodecimal: 3AAB9

Hexadecimal: 13cad

Square: 6572182761

Square Root: 284.7261842542761

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

Number of nonconsecutive chess tableaux with n cells. A238020

Revert transform of 2·x*(1 - x - x³ + x⁴)-x/(1+x). A49175

a(n) = Lucas(4n)+2 = Lucas(2n)². A81069