Compare 21739 vs 21747
| Property | 21739 | 21747 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 217391 | 31 × 111 × 6591 |
| Prime factorization | 21739 | 3 × 11 × 659 |
| Divisors count | 2 | 8 |
| Divisors | 1, 21739 | 1, 3, 11, 33, 659, 1977, 7249, 21747 |
| Number of properties | 4 | 0 |
| Chen primes | 1198th | |
| Lucky primes | 393rd | |
| Primes | 2439th | |
| Twin primes (2nd member) | 371st | |
| Roman numberals | ||
| Base 2 | 1010100111010112 | 1010100111100112 |
| Base 3 | 10022110113 | 10022111103 |
| Base 4 | 111032234 | 111033034 |
| Base 5 | 11434245 | 11434425 |
| Base 6 | 2443516 | 2444036 |
| Base 7 | 1202447 | 1202557 |
| Base 8 | 523538 | 523638 |
| Base 9 | 327349 | 327439 |
| Base 10 | 2173910 | 2174710 |
| Base 11 | 1537311 | 1538011 |
| Base 12 | 106b712 | 1070312 |
| Base 13 | 9b8313 | 9b8b13 |
| Base 14 | 7ccb14 | 7cd514 |
| Base 15 | 669415 | 669c15 |
| Base 16 | 54eb16 | 54f316 |