Compare 1221 vs 1226
| Property | 1221 | 1226 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 111 × 371 | 21 × 6131 |
| Prime factorization | 3 × 11 × 37 | 2 × 613 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 11, 33, 37, 111, 407, 1221 | 1, 2, 613, 1226 |
| Number of properties | 0 | 1 |
| Semiprimes | 361st | |
| Roman numberals | MCCXXI | MCCXXVI |
| Base 2 | 100110001012 | 100110010102 |
| Base 3 | 12000203 | 12001023 |
| Base 4 | 1030114 | 1030224 |
| Base 5 | 143415 | 144015 |
| Base 6 | 53536 | 54026 |
| Base 7 | 33637 | 34017 |
| Base 8 | 23058 | 23128 |
| Base 9 | 16069 | 16129 |
| Base 10 | 122110 | 122610 |
| Base 11 | a1011 | a1511 |
| Base 12 | 85912 | 86212 |
| Base 13 | 72c13 | 73413 |
| Base 14 | 63314 | 63814 |
| Base 15 | 56615 | 56b15 |
| Base 16 | 4c516 | 4ca16 |