Compare 640 vs 650
| Property | 640 | 650 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 8 | 4 |
| Prime factorization | 27 × 51 | 21 × 52 × 131 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 | 2 × 5 × 5 × 13 |
| Divisors count | 16 | 12 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640 | 1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650 |
| Number of properties | 0 | 0 |
| Roman numberals | DCXL | DCL |
| Base 2 | 10100000002 | 10100010102 |
| Base 3 | 2122013 | 2200023 |
| Base 4 | 220004 | 220224 |
| Base 5 | 100305 | 101005 |
| Base 6 | 25446 | 30026 |
| Base 7 | 16037 | 16167 |
| Base 8 | 12008 | 12128 |
| Base 9 | 7819 | 8029 |
| Base 10 | 64010 | 65010 |
| Base 11 | 53211 | 54111 |
| Base 12 | 45412 | 46212 |
| Base 13 | 3a313 | 3b013 |
| Base 14 | 33a14 | 34614 |
| Base 15 | 2ca15 | 2d515 |
| Base 16 | 28016 | 28a16 |