Number 21390
Prime factorization
| Factorization |
2 *
3 *
5 *
23 *
31
|
| Divisors |
1,
2,
3,
5,
6,
10,
15,
23,
30,
31,
46,
62,
69,
93,
115,
138,
155,
186,
230,
310,
345,
465,
690,
713,
930,
1426,
2139,
3565,
4278,
7130,
10695,
21390
|
| Count of divisors |
32 |
| Sum of divisors |
55296 |
Basic properties
| Is prime? |
× NO
|
| Previous integer |
21389 |
| Next integer |
21391 |
| Previous prime number |
21383 |
| Next prime number |
21391 |
| Reciprocal |
0.000046750818139 |
| Square |
457532100 |
| Square root |
146.25320509308506 |
| Natural logarithm |
9.970678802076451 |
| Decimal logarithm |
4.330210784571528 |
| Sine |
0.8931847884320576 |
| Cosine |
-0.44968981944622727 |
| Tangent |
-1.9862241701001246 |
Expressions
| Binary |
101001110001110 |
| Octal |
51616 |
| Hexadecimal |
538e |