Compare 669 vs 680
| Property | 669 | 680 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 5 |
| Prime factorization | 31 × 2231 | 23 × 51 × 171 |
| Prime factorization | 3 × 223 | 2 × 2 × 2 × 5 × 17 |
| Divisors count | 4 | 16 |
| Divisors | 1, 3, 223, 669 | 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680 |
| Number of properties | 1 | 0 |
| Semiprimes | 200th | |
| Roman numberals | DCLXIX | DCLXXX |
| Base 2 | 10100111012 | 10101010002 |
| Base 3 | 2202103 | 2210123 |
| Base 4 | 221314 | 222204 |
| Base 5 | 101345 | 102105 |
| Base 6 | 30336 | 30526 |
| Base 7 | 16447 | 16617 |
| Base 8 | 12358 | 12508 |
| Base 9 | 8239 | 8359 |
| Base 10 | 66910 | 68010 |
| Base 11 | 55911 | 56911 |
| Base 12 | 47912 | 48812 |
| Base 13 | 3c613 | 40413 |
| Base 14 | 35b14 | 36814 |
| Base 15 | 2e915 | 30515 |
| Base 16 | 29d16 | 2a816 |