Compare 1640 vs 1648
| Property | 1640 | 1648 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 5 | 5 |
| Prime factorization | 23 × 51 × 411 | 24 × 1031 |
| Prime factorization | 2 × 2 × 2 × 5 × 41 | 2 × 2 × 2 × 2 × 103 |
| Divisors count | 16 | 10 |
| Divisors | 1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640 | 1, 2, 4, 8, 16, 103, 206, 412, 824, 1648 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCXL | MDCXLVIII |
| Base 2 | 110011010002 | 110011100002 |
| Base 3 | 20202023 | 20210013 |
| Base 4 | 1212204 | 1213004 |
| Base 5 | 230305 | 230435 |
| Base 6 | 113326 | 113446 |
| Base 7 | 45327 | 45437 |
| Base 8 | 31508 | 31608 |
| Base 9 | 22229 | 22319 |
| Base 10 | 164010 | 164810 |
| Base 11 | 126111 | 126911 |
| Base 12 | b4812 | b5412 |
| Base 13 | 99213 | 99a13 |
| Base 14 | 85214 | 85a14 |
| Base 15 | 74515 | 74d15 |
| Base 16 | 66816 | 67016 |