Compare 21739 vs 21991
| Property | 21739 | 21991 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 217391 | 219911 |
| Prime factorization | 21739 | 21991 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21739 | 1, 21991 |
| Number of properties | 4 | 5 |
| Chen primes | 1198th | 1208th |
| Isolated primes | 1720th | |
| Lucky primes | 393rd | |
| Primes | 2439th | 2463rd |
| Sexy primes (1st member) | 742nd | |
| Sexy prime triplets (1st member) | 202nd | |
| Twin primes (2nd member) | 371st | |
| Roman numberals | ||
| Base 2 | 1010100111010112 | 1010101111001112 |
| Base 3 | 10022110113 | 10100111113 |
| Base 4 | 111032234 | 111132134 |
| Base 5 | 11434245 | 12004315 |
| Base 6 | 2443516 | 2454516 |
| Base 7 | 1202447 | 1210547 |
| Base 8 | 523538 | 527478 |
| Base 9 | 327349 | 331449 |
| Base 10 | 2173910 | 2199110 |
| Base 11 | 1537311 | 1558211 |
| Base 12 | 106b712 | 1088712 |
| Base 13 | 9b8313 | a01813 |
| Base 14 | 7ccb14 | 802b14 |
| Base 15 | 669415 | 67b115 |
| Base 16 | 54eb16 | 55e716 |