Compare 2015 vs 2020
| Property | 2015 | 2020 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 3 |
| Total factors | 3 | 4 |
| Prime factorization | 51 × 131 × 311 | 22 × 51 × 1011 |
| Prime factorization | 5 × 13 × 31 | 2 × 2 × 5 × 101 |
| Divisors count | 8 | 12 |
| Divisors | 1, 5, 13, 31, 65, 155, 403, 2015 | 1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020 |
| Number of properties | 0 | 0 |
| Roman numberals | MMXV | MMXX |
| Base 2 | 111110111112 | 111111001002 |
| Base 3 | 22021223 | 22022113 |
| Base 4 | 1331334 | 1332104 |
| Base 5 | 310305 | 310405 |
| Base 6 | 131556 | 132046 |
| Base 7 | 56067 | 56147 |
| Base 8 | 37378 | 37448 |
| Base 9 | 26789 | 26849 |
| Base 10 | 201510 | 202010 |
| Base 11 | 157211 | 157711 |
| Base 12 | 11bb12 | 120412 |
| Base 13 | bc013 | bc513 |
| Base 14 | a3d14 | a4414 |
| Base 15 | 8e515 | 8ea15 |
| Base 16 | 7df16 | 7e416 |