Number 261
Prime factorization
| Factorization |
3 *
3 *
29
|
| Divisors |
1,
3,
9,
29,
87,
261
|
| Count of divisors |
6 |
| Sum of divisors |
390 |
Basic properties
| Is prime? |
× NO
|
| Previous integer |
260 |
| Next integer |
262 |
| Previous prime number |
257 |
| Next prime number |
263 |
| Reciprocal |
0.003831417624521 |
| Square |
68121 |
| Square root |
16.15549442140351 |
| Natural logarithm |
5.564520407322694 |
| Decimal logarithm |
2.416640507338281 |
| Sine |
-0.24528120908194284 |
| Cosine |
-0.9694519732670104 |
| Tangent |
0.25301017053516944 |
Expressions
| Binary |
100000101 |
| Octal |
405 |
| Hexadecimal |
105 |