Compare 1220 vs 1221
| Property | 1220 | 1221 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 4 | 3 |
| Prime factorization | 22 × 51 × 611 | 31 × 111 × 371 |
| Prime factorization | 2 × 2 × 5 × 61 | 3 × 11 × 37 |
| Divisors count | 12 | 8 |
| Divisors | 1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220 | 1, 3, 11, 33, 37, 111, 407, 1221 |
| Number of properties | 0 | 0 |
| Roman numberals | MCCXX | MCCXXI |
| Base 2 | 100110001002 | 100110001012 |
| Base 3 | 12000123 | 12000203 |
| Base 4 | 1030104 | 1030114 |
| Base 5 | 143405 | 143415 |
| Base 6 | 53526 | 53536 |
| Base 7 | 33627 | 33637 |
| Base 8 | 23048 | 23058 |
| Base 9 | 16059 | 16069 |
| Base 10 | 122010 | 122110 |
| Base 11 | a0a11 | a1011 |
| Base 12 | 85812 | 85912 |
| Base 13 | 72b13 | 72c13 |
| Base 14 | 63214 | 63314 |
| Base 15 | 56515 | 56615 |
| Base 16 | 4c416 | 4c516 |