Compare 9878 vs 9887
| Property | 9878 | 9887 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 111 × 4491 | 98871 |
| Prime factorization | 2 × 11 × 449 | 9887 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 11, 22, 449, 898, 4939, 9878 | 1, 9887 |
| Number of properties | 0 | 6 |
| Cousin primes (2nd member) | 203rd | |
| Harmonic primes | 444th | |
| Isolated primes | 813th | |
| Long primes | 464th | |
| Primes | 1220th | |
| Safe primes | 115th | |
| Roman numberals | ||
| Base 2 | 100110100101102 | 100110100111112 |
| Base 3 | 1111122123 | 1111200123 |
| Base 4 | 21221124 | 21221334 |
| Base 5 | 3040035 | 3040225 |
| Base 6 | 1134226 | 1134356 |
| Base 7 | 405417 | 405537 |
| Base 8 | 232268 | 232378 |
| Base 9 | 144859 | 145059 |
| Base 10 | 987810 | 988710 |
| Base 11 | 747011 | 747911 |
| Base 12 | 587212 | 587b12 |
| Base 13 | 465b13 | 466713 |
| Base 14 | 385814 | 386314 |
| Base 15 | 2dd815 | 2de215 |
| Base 16 | 269616 | 269f16 |