Compare 648 vs 651
| Property | 648 | 651 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 7 | 3 |
| Prime factorization | 23 × 34 | 31 × 71 × 311 |
| Prime factorization | 2 × 2 × 2 × 3 × 3 × 3 × 3 | 3 × 7 × 31 |
| Divisors count | 20 | 8 |
| Divisors | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648 | 1, 3, 7, 21, 31, 93, 217, 651 |
| Number of properties | 0 | 0 |
| Roman numberals | DCXLVIII | DCLI |
| Base 2 | 10100010002 | 10100010112 |
| Base 3 | 2200003 | 2200103 |
| Base 4 | 220204 | 220234 |
| Base 5 | 100435 | 101015 |
| Base 6 | 30006 | 30036 |
| Base 7 | 16147 | 16207 |
| Base 8 | 12108 | 12138 |
| Base 9 | 8009 | 8039 |
| Base 10 | 64810 | 65110 |
| Base 11 | 53a11 | 54211 |
| Base 12 | 46012 | 46312 |
| Base 13 | 3ab13 | 3b113 |
| Base 14 | 34414 | 34714 |
| Base 15 | 2d315 | 2d615 |
| Base 16 | 28816 | 28b16 |