Compare 221215 vs 221221
| Property | 221215 | 221221 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 4 |
| Total factors | 3 | 5 |
| Prime factorization | 51 × 1511 × 2931 | 71 × 111 × 132 × 171 |
| Prime factorization | 5 × 151 × 293 | 7 × 11 × 13 × 13 × 17 |
| Divisors count | 8 | 24 |
| Divisors | 1, 5, 151, 293, 755, 1465, 44243, 221215 | 1, 7, 11, 13, 17, 77, 91, 119, 143, 169, 187, 221, 1001, 1183, 1309, 1547, 1859, 2431, 2873, 13013, 17017, 20111, 31603, 221221 |
| Number of properties | 0 | 0 |
| Roman numberals | ||
| Base 2 | 1101100000000111112 | 1101100000001001012 |
| Base 3 | 1020201100113 | 1020201101013 |
| Base 4 | 3120001334 | 3120002114 |
| Base 5 | 240343305 | 240343415 |
| Base 6 | 44240516 | 44241016 |
| Base 7 | 16106417 | 16106507 |
| Base 8 | 6600378 | 6600458 |
| Base 9 | 3664049 | 3664119 |
| Base 10 | 22121510 | 22122110 |
| Base 11 | 14122511 | 14123011 |
| Base 12 | a802712 | a803112 |
| Base 13 | 798c713 | 7990013 |
| Base 14 | 5a89114 | 5a89714 |
| Base 15 | 4582a15 | 4583115 |
| Base 16 | 3601f16 | 3602516 |