Compare 1221 vs 1230
| Property | 1221 | 1230 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 4 |
| Total factors | 3 | 4 |
| Prime factorization | 31 × 111 × 371 | 21 × 31 × 51 × 411 |
| Prime factorization | 3 × 11 × 37 | 2 × 3 × 5 × 41 |
| Divisors count | 8 | 16 |
| Divisors | 1, 3, 11, 33, 37, 111, 407, 1221 | 1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230 |
| Number of properties | 0 | 0 |
| Roman numberals | MCCXXI | MCCXXX |
| Base 2 | 100110001012 | 100110011102 |
| Base 3 | 12000203 | 12001203 |
| Base 4 | 1030114 | 1030324 |
| Base 5 | 143415 | 144105 |
| Base 6 | 53536 | 54106 |
| Base 7 | 33637 | 34057 |
| Base 8 | 23058 | 23168 |
| Base 9 | 16069 | 16169 |
| Base 10 | 122110 | 123010 |
| Base 11 | a1011 | a1911 |
| Base 12 | 85912 | 86612 |
| Base 13 | 72c13 | 73813 |
| Base 14 | 63314 | 63c14 |
| Base 15 | 56615 | 57015 |
| Base 16 | 4c516 | 4ce16 |