Compare 1638 vs 1648
| Property | 1638 | 1648 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 4 | 2 |
| Total factors | 5 | 5 |
| Prime factorization | 21 × 32 × 71 × 131 | 24 × 1031 |
| Prime factorization | 2 × 3 × 3 × 7 × 13 | 2 × 2 × 2 × 2 × 103 |
| Divisors count | 24 | 10 |
| Divisors | 1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638 | 1, 2, 4, 8, 16, 103, 206, 412, 824, 1648 |
| Number of properties | 0 | 0 |
| Roman numberals | MDCXXXVIII | MDCXLVIII |
| Base 2 | 110011001102 | 110011100002 |
| Base 3 | 20202003 | 20210013 |
| Base 4 | 1212124 | 1213004 |
| Base 5 | 230235 | 230435 |
| Base 6 | 113306 | 113446 |
| Base 7 | 45307 | 45437 |
| Base 8 | 31468 | 31608 |
| Base 9 | 22209 | 22319 |
| Base 10 | 163810 | 164810 |
| Base 11 | 125a11 | 126911 |
| Base 12 | b4612 | b5412 |
| Base 13 | 99013 | 99a13 |
| Base 14 | 85014 | 85a14 |
| Base 15 | 74315 | 74d15 |
| Base 16 | 66616 | 67016 |