Compare 2009 vs 2015
| Property | 2009 | 2015 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 3 |
| Prime factorization | 72 × 411 | 51 × 131 × 311 |
| Prime factorization | 7 × 7 × 41 | 5 × 13 × 31 |
| Divisors count | 6 | 8 |
| Divisors | 1, 7, 41, 49, 287, 2009 | 1, 5, 13, 31, 65, 155, 403, 2015 |
| Number of properties | 0 | 0 |
| Roman numberals | MMIX | MMXV |
| Base 2 | 111110110012 | 111110111112 |
| Base 3 | 22021023 | 22021223 |
| Base 4 | 1331214 | 1331334 |
| Base 5 | 310145 | 310305 |
| Base 6 | 131456 | 131556 |
| Base 7 | 56007 | 56067 |
| Base 8 | 37318 | 37378 |
| Base 9 | 26729 | 26789 |
| Base 10 | 200910 | 201510 |
| Base 11 | 156711 | 157211 |
| Base 12 | 11b512 | 11bb12 |
| Base 13 | bb713 | bc013 |
| Base 14 | a3714 | a3d14 |
| Base 15 | 8de15 | 8e515 |
| Base 16 | 7d916 | 7df16 |