Compare 19907 vs 19919
| Property | 19907 | 19919 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 171 × 11711 | 199191 |
| Prime factorization | 17 × 1171 | 19919 |
| Divisors count | 4 | 2 |
| Divisors | 1, 17, 1171, 19907 | 1, 19919 |
| Number of properties | 1 | 7 |
| Additive primes | 1046th | |
| Chen primes | 1107th | |
| Harmonic primes | 816th | |
| Isolated primes | 1573rd | |
| Primes | 2252nd | |
| Semiprimes | 5064th | |
| Sexy primes (2nd member) | 691st | |
| Sophie germain primes | 325th | |
| Roman numberals | ||
| Base 2 | 1001101110000112 | 1001101110011112 |
| Base 3 | 10000220223 | 10000222023 |
| Base 4 | 103130034 | 103130334 |
| Base 5 | 11141125 | 11141345 |
| Base 6 | 2320556 | 2321156 |
| Base 7 | 1120167 | 1120347 |
| Base 8 | 467038 | 467178 |
| Base 9 | 302689 | 302829 |
| Base 10 | 1990710 | 1991910 |
| Base 11 | 13a5811 | 13a6911 |
| Base 12 | b62b12 | b63b12 |
| Base 13 | 90a413 | 90b313 |
| Base 14 | 737d14 | 738b14 |
| Base 15 | 5d7215 | 5d7e15 |
| Base 16 | 4dc316 | 4dcf16 |