Number 1291
Prime factorization
Basic properties
| Is prime? |
◎ YES
It's 210th prime number. |
| Previous integer | 1290 |
| Next integer | 1292 |
| Previous prime number | 1289 |
| Next prime number | 1297 |
| Reciprocal | 0.000774593338497 |
| Square | 1666681 |
| Square root | 35.93048844644336 |
| Natural logarithm | 7.1631723908466425 |
| Decimal logarithm | 3.1109262422664203 |
| Sine | 0.1933550914660601 |
| Cosine | -0.9811288440384125 |
| Tangent | -0.19707410768823547 |
Expressions
| Binary | 10100001011 |
| Octal | 2413 |
| Hexadecimal | 50b |