Compare 678 vs 690
| Property | 678 | 690 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 4 |
| Total factors | 3 | 4 |
| Prime factorization | 21 × 31 × 1131 | 21 × 31 × 51 × 231 |
| Prime factorization | 2 × 3 × 113 | 2 × 3 × 5 × 23 |
| Divisors count | 8 | 16 |
| Divisors | 1, 2, 3, 6, 113, 226, 339, 678 | 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690 |
| Number of properties | 0 | 0 |
| Roman numberals | DCLXXVIII | DCXC |
| Base 2 | 10101001102 | 10101100102 |
| Base 3 | 2210103 | 2211203 |
| Base 4 | 222124 | 223024 |
| Base 5 | 102035 | 102305 |
| Base 6 | 30506 | 31106 |
| Base 7 | 16567 | 20047 |
| Base 8 | 12468 | 12628 |
| Base 9 | 8339 | 8469 |
| Base 10 | 67810 | 69010 |
| Base 11 | 56711 | 57811 |
| Base 12 | 48612 | 49612 |
| Base 13 | 40213 | 41113 |
| Base 14 | 36614 | 37414 |
| Base 15 | 30315 | 31015 |
| Base 16 | 2a616 | 2b216 |