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 |