Compare 1211 vs 1215
| Property | 1211 | 1215 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 6 |
| Prime factorization | 71 × 1731 | 35 × 51 |
| Prime factorization | 7 × 173 | 3 × 3 × 3 × 3 × 3 × 5 |
| Divisors count | 4 | 12 |
| Divisors | 1, 7, 173, 1211 | 1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215 |
| Number of properties | 1 | 0 |
| Semiprimes | 358th | |
| Roman numberals | MCCXI | MCCXV |
| Base 2 | 100101110112 | 100101111112 |
| Base 3 | 11222123 | 12000003 |
| Base 4 | 1023234 | 1023334 |
| Base 5 | 143215 | 143305 |
| Base 6 | 53356 | 53436 |
| Base 7 | 33507 | 33547 |
| Base 8 | 22738 | 22778 |
| Base 9 | 15859 | 16009 |
| Base 10 | 121110 | 121510 |
| Base 11 | a0111 | a0511 |
| Base 12 | 84b12 | 85312 |
| Base 13 | 72213 | 72613 |
| Base 14 | 62714 | 62b14 |
| Base 15 | 55b15 | 56015 |
| Base 16 | 4bb16 | 4bf16 |