Number 21391
Prime factorization
Basic properties
| Is prime? |
◎ YES
It's 2401th prime number. |
| Previous integer | 21390 |
| Next integer | 21392 |
| Previous prime number | 21383 |
| Next prime number | 21397 |
| Reciprocal | 0.000046748632602 |
| Square | 457574881 |
| Square root | 146.2566237816257 |
| Natural logarithm | 9.970725551801808 |
| Decimal logarithm | 4.330231087719279 |
| Sine | 0.10418886552868523 |
| Cosine | -0.9945575299095802 |
| Tangent | -0.10475901332541065 |
Expressions
| Binary | 101001110001111 |
| Octal | 51617 |
| Hexadecimal | 538f |