Number 1381
Prime factorization
Basic properties
| Is prime? |
◎ YES
It's 221th prime number. |
| Previous integer | 1380 |
| Next integer | 1382 |
| Previous prime number | 1373 |
| Next prime number | 1399 |
| Reciprocal | 0.000724112961622 |
| Square | 1907161 |
| Square root | 37.16180835212409 |
| Natural logarithm | 7.2305631534092925 |
| Decimal logarithm | 3.1401936785786315 |
| Sine | -0.9637632281627969 |
| Cosine | 0.26675914237608567 |
| Tangent | -3.6128592241612933 |
Expressions
| Binary | 10101100101 |
| Octal | 2545 |
| Hexadecimal | 565 |