| Prime Factorization |
34 |
| Divisors |
1, 3, 9, 27, 81 |
| Count of divisors |
5 |
| Sum of divisors |
121 |
| Previous integer |
80 |
| Next integer |
82 |
| Is prime? |
NO |
| Previous prime |
79 |
| Next prime |
83 |
| 81st prime number |
↻ calculating, please wait |
| Is a Fibonacci number? |
NO |
| 81st Fibonacci number |
37889062373143906 |
| Zeckendorf representation |
55 + 21 + 5 |
| Is a Pell number? |
NO |
| Is a regular number? |
YES |
| Is a perfect number? |
NO |
| Is a perfect square number? |
YES |
| Is a perfect cube number? |
NO |
| Is power of 2? |
NO |
| Is power of 3? |
YES |
| Factorial 81! |
5.7971260207474E+120 |
| Square 812 |
6561 |
| Square root √81 |
9 |
| Cube 813 |
531441 |
| Cubic root ∛81 |
4.3267487109222 |
| Natural logarithm |
4.3944491546724 |
| Decimal logarithm |
1.9084850188786 |