Compare 1644 vs 1647
| Property | 1644 | 1647 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 4 | 4 |
| Prime factorization | 22 × 31 × 1371 | 33 × 611 |
| Prime factorization | 2 × 2 × 3 × 137 | 3 × 3 × 3 × 61 |
| Divisors count | 12 | 8 |
| Divisors | 1, 2, 3, 4, 6, 12, 137, 274, 411, 548, 822, 1644 | 1, 3, 9, 27, 61, 183, 549, 1647 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCXLIV | MDCXLVII |
| Base 2 | 110011011002 | 110011011112 |
| Base 3 | 20202203 | 20210003 |
| Base 4 | 1212304 | 1212334 |
| Base 5 | 230345 | 230425 |
| Base 6 | 113406 | 113436 |
| Base 7 | 45367 | 45427 |
| Base 8 | 31548 | 31578 |
| Base 9 | 22269 | 22309 |
| Base 10 | 164410 | 164710 |
| Base 11 | 126511 | 126811 |
| Base 12 | b5012 | b5312 |
| Base 13 | 99613 | 99913 |
| Base 14 | 85614 | 85914 |
| Base 15 | 74915 | 74c15 |
| Base 16 | 66c16 | 66f16 |