Number 28
Prime factorization
| Factorization |
2 *
2 *
7
|
| Divisors |
1,
2,
4,
7,
14,
28
|
| Count of divisors |
6 |
| Sum of divisors |
56 |
Basic properties
| Is prime? |
× NO
|
| Previous integer |
27 |
| Next integer |
29 |
| Previous prime number |
23 |
| Next prime number |
29 |
| Reciprocal |
0.035714285714285 |
| Square |
784 |
| Square root |
5.291502622129181 |
| Natural logarithm |
3.332204510175204 |
| Decimal logarithm |
1.4471580313422192 |
| Sine |
0.27090578830786904 |
| Cosine |
-0.9626058663135666 |
| Tangent |
-0.28142960456426525 |
Expressions
| Binary |
11100 |
| Octal |
34 |
| Hexadecimal |
1c |