Compare 21728 vs 21739
| Property | 21728 | 21739 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 25 × 71 × 971 | 217391 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 7 × 97 | 21739 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 97, 112, 194, 224, 388, 679, 776, 1358, 1552, 2716, 3104, 5432, 10864, 21728 | 1, 21739 |
| Number of properties | 0 | 4 |
| Chen primes | 1198th | |
| Lucky primes | 393rd | |
| Primes | 2439th | |
| Twin primes (2nd member) | 371st | |
| Roman numberals | ||
| Base 2 | 1010100111000002 | 1010100111010112 |
| Base 3 | 10022102023 | 10022110113 |
| Base 4 | 111032004 | 111032234 |
| Base 5 | 11434035 | 11434245 |
| Base 6 | 2443326 | 2443516 |
| Base 7 | 1202307 | 1202447 |
| Base 8 | 523408 | 523538 |
| Base 9 | 327229 | 327349 |
| Base 10 | 2172810 | 2173910 |
| Base 11 | 1536311 | 1537311 |
| Base 12 | 106a812 | 106b712 |
| Base 13 | 9b7513 | 9b8313 |
| Base 14 | 7cc014 | 7ccb14 |
| Base 15 | 668815 | 669415 |
| Base 16 | 54e016 | 54eb16 |