Compare 1221 vs 1225
| Property | 1221 | 1225 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 3 | 4 |
| Prime factorization | 31 × 111 × 371 | 52 × 72 |
| Prime factorization | 3 × 11 × 37 | 5 × 5 × 7 × 7 |
| Divisors count | 8 | 9 |
| Divisors | 1, 3, 11, 33, 37, 111, 407, 1221 | 1, 5, 7, 25, 35, 49, 175, 245, 1225 |
| Number of properties | 0 | 0 |
| Roman numberals | MCCXXI | MCCXXV |
| Base 2 | 100110001012 | 100110010012 |
| Base 3 | 12000203 | 12001013 |
| Base 4 | 1030114 | 1030214 |
| Base 5 | 143415 | 144005 |
| Base 6 | 53536 | 54016 |
| Base 7 | 33637 | 34007 |
| Base 8 | 23058 | 23118 |
| Base 9 | 16069 | 16119 |
| Base 10 | 122110 | 122510 |
| Base 11 | a1011 | a1411 |
| Base 12 | 85912 | 86112 |
| Base 13 | 72c13 | 73313 |
| Base 14 | 63314 | 63714 |
| Base 15 | 56615 | 56a15 |
| Base 16 | 4c516 | 4c916 |