Compare 1990 vs 2002
| Property | 1990 | 2002 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 4 |
| Total factors | 3 | 4 |
| Prime factorization | 21 × 51 × 1991 | 21 × 71 × 111 × 131 |
| Prime factorization | 2 × 5 × 199 | 2 × 7 × 11 × 13 |
| Divisors count | 8 | 16 |
| Divisors | 1, 2, 5, 10, 199, 398, 995, 1990 | 1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002 |
| Number of properties | 0 | 0 |
| Roman numberals | MCMXC | MMII |
| Base 2 | 111110001102 | 111110100102 |
| Base 3 | 22012013 | 22020113 |
| Base 4 | 1330124 | 1331024 |
| Base 5 | 304305 | 310025 |
| Base 6 | 131146 | 131346 |
| Base 7 | 55427 | 55607 |
| Base 8 | 37068 | 37228 |
| Base 9 | 26519 | 26649 |
| Base 10 | 199010 | 200210 |
| Base 11 | 154a11 | 156011 |
| Base 12 | 119a12 | 11aa12 |
| Base 13 | ba113 | bb013 |
| Base 14 | a2214 | a3014 |
| Base 15 | 8ca15 | 8d715 |
| Base 16 | 7c616 | 7d216 |