Properties of the Number 81029

Eighty-One Thousand Twenty-Nine

Basics

Value: 81028 → 81029 → 81030

Parity: odd

Prime: No

Previous Prime: 81023

Next Prime: 81031

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 13 × 23 × 271

Divisors: 1, 13, 23, 271, 299, 3523, 6233, 81029

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10011110010000101

Octal: 236205

Duodecimal: 3AA85

Hexadecimal: 13c85

Square: 6565698841

Square Root: 284.65593266257423

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

Numbers k such that 2·10^k + 6·R_k - 3 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A98959

Highly central numbers: numbers having a centrality higher than that of any larger number. A81029