Compare 19945 vs 19949
| Property | 19945 | 19949 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 39891 | 199491 |
| Prime factorization | 5 × 3989 | 19949 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 3989, 19945 | 1, 19949 |
| Number of properties | 1 | 5 |
| Chen primes | 1109th | |
| Isolated primes | 1576th | |
| Long primes | 863rd | |
| Primes | 2255th | |
| Pythagorean primes | 1121st | |
| Semiprimes | 5072nd | |
| Roman numberals | ||
| Base 2 | 1001101111010012 | 1001101111011012 |
| Base 3 | 10001002013 | 10001002123 |
| Base 4 | 103132214 | 103132314 |
| Base 5 | 11142405 | 11142445 |
| Base 6 | 2322016 | 2322056 |
| Base 7 | 1121027 | 1121067 |
| Base 8 | 467518 | 467558 |
| Base 9 | 303219 | 303259 |
| Base 10 | 1994510 | 1994910 |
| Base 11 | 13a9211 | 13a9611 |
| Base 12 | b66112 | b66512 |
| Base 13 | 910313 | 910713 |
| Base 14 | 73a914 | 73ad14 |
| Base 15 | 5d9a15 | 5d9e15 |
| Base 16 | 4de916 | 4ded16 |