Compare 21139 vs 21739
| Property | 21139 | 21739 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 211391 | 217391 |
| Prime factorization | 21139 | 21739 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21139 | 1, 21739 |
| Number of properties | 5 | 4 |
| Chen primes | 1198th | |
| Cousin primes (1st member) | 360th | |
| Good primes | 266th | |
| Isolated primes | 1656th | |
| Lucky primes | 385th | 393rd |
| Primes | 2375th | 2439th |
| Twin primes (2nd member) | 371st | |
| Roman numberals | ||
| Base 2 | 1010010100100112 | 1010100111010112 |
| Base 3 | 10012222213 | 10022110113 |
| Base 4 | 110221034 | 111032234 |
| Base 5 | 11340245 | 11434245 |
| Base 6 | 2415116 | 2443516 |
| Base 7 | 1154267 | 1202447 |
| Base 8 | 512238 | 523538 |
| Base 9 | 318879 | 327349 |
| Base 10 | 2113910 | 2173910 |
| Base 11 | 1497811 | 1537311 |
| Base 12 | 1029712 | 106b712 |
| Base 13 | 981113 | 9b8313 |
| Base 14 | 79bd14 | 7ccb14 |
| Base 15 | 63e415 | 669415 |
| Base 16 | 529316 | 54eb16 |