Compare 17987 vs 17998
| Property | 17987 | 17998 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 179871 | 21 × 89991 |
| Prime factorization | 17987 | 2 × 8999 |
| Divisors count | 2 | 4 |
| Divisors | 1, 17987 | 1, 2, 8999, 17998 |
| Number of properties | 5 | 1 |
| Chen primes | 1024th | |
| Primes | 2063rd | |
| Semiprimes | 4587th | |
| Sexy primes (2nd member) | 637th | |
| Super primes | 311th | |
| Twin primes (1st member) | 315th | |
| Roman numberals | ||
| Base 2 | 1000110010000112 | 1000110010011102 |
| Base 3 | 2202000123 | 2202001213 |
| Base 4 | 101210034 | 101210324 |
| Base 5 | 10334225 | 10334435 |
| Base 6 | 2151356 | 2151546 |
| Base 7 | 1033047 | 1033217 |
| Base 8 | 431038 | 431168 |
| Base 9 | 266059 | 266179 |
| Base 10 | 1798710 | 1799810 |
| Base 11 | 1257211 | 1258211 |
| Base 12 | a4ab12 | a4ba12 |
| Base 13 | 825813 | 826613 |
| Base 14 | 67ab14 | 67b814 |
| Base 15 | 54e215 | 54ed15 |
| Base 16 | 464316 | 464e16 |