Prime Factorization |
5 x 13 |
Divisors |
1, 5, 13, 65 |
Count of divisors |
4 |
Sum of divisors |
84 |
Previous integer |
64 |
Next integer |
66 |
Is prime? |
NO |
Previous prime |
61 |
Next prime |
67 |
65th prime number |
↻ calculating, please wait |
Is a Fibonacci number? |
NO |
65th Fibonacci number |
17167680177565 |
Zeckendorf representation |
55 + 8 + 2 |
Is a Pell number? |
NO |
Is a regular number? |
NO |
Is a perfect number? |
NO |
Is a perfect square number? |
NO |
Is a perfect cube number? |
NO |
Is power of 2? |
NO |
Is power of 3? |
NO |
Factorial 65! |
8.2476505920825E+90 |
Square 652 |
4225 |
Square root √65 |
8.0622577482985 |
Cube 653 |
274625 |
Cubic root ∛65 |
4.0207257585891 |
Natural logarithm |
4.1743872698956 |
Decimal logarithm |
1.8129133566429 |