Prime Factorization |
991 |
Divisors |
1, 991 |
Count of divisors |
2 |
Sum of divisors |
992 |
Previous integer |
990 |
Next integer |
992 |
Is prime? |
YES |
Prime number position |
167 |
Previous prime |
983 |
Next prime |
997 |
991st prime number |
↻ calculating, please wait |
Is a Fibonacci number? |
NO |
Zeckendorf representation |
987 + 3 + 1 |
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 |
Square 9912 |
982081 |
Square root √991 |
31.480152477394 |
Cube 9913 |
973242271 |
Cubic root ∛991 |
9.9699095472821 |
Natural logarithm |
6.89871453433 |
Decimal logarithm |
2.9960736544853 |