Properties of the Number 81027

Eighty-One Thousand Twenty-Seven

Basics

Value: 81026 → 81027 → 81028

Parity: odd

Prime: No

Previous Prime: 81023

Next Prime: 81031

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 3001

Divisors: 1, 3, 9, 27, 3001, 9003, 27009, 81027

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110010000011

Octal: 236203

Duodecimal: 3AA83

Hexadecimal: 13c83

Square: 6565374729

Square Root: 284.65241962786826

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 n X 2 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, rows lexicographically nondecreasing, and columns lexicographically nonincreasing. A229422

Positions of 5-digit terms in the continued fraction for π (3 is position 0). A48961

Primes that are not in A080608. A81027