Compare 9887 vs 9931
| Property | 9887 | 9931 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 98871 | 99311 |
| Prime factorization | 9887 | 9931 |
| Divisors count | 2 | 2 |
| Divisors | 1, 9887 | 1, 9931 |
| Number of properties | 6 | 4 |
| Cousin primes (2nd member) | 203rd | |
| Emirps | 238th | |
| Harmonic primes | 444th | |
| Isolated primes | 813th | |
| Long primes | 464th | 465th |
| Primes | 1220th | 1225th |
| Safe primes | 115th | |
| Twin primes (2nd member) | 205th | |
| Roman numberals | ||
| Base 2 | 100110100111112 | 100110110010112 |
| Base 3 | 1111200123 | 1111212113 |
| Base 4 | 21221334 | 21230234 |
| Base 5 | 3040225 | 3042115 |
| Base 6 | 1134356 | 1135516 |
| Base 7 | 405537 | 406457 |
| Base 8 | 232378 | 233138 |
| Base 9 | 145059 | 145549 |
| Base 10 | 988710 | 993110 |
| Base 11 | 747911 | 750911 |
| Base 12 | 587b12 | 58b712 |
| Base 13 | 466713 | 469c13 |
| Base 14 | 386314 | 389514 |
| Base 15 | 2de215 | 2e2115 |
| Base 16 | 269f16 | 26cb16 |