Compare 1520 vs 1521
| Property | 1520 | 1521 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 2 |
| Total factors | 6 | 4 |
| Prime factorization | 24 × 51 × 191 | 32 × 132 |
| Prime factorization | 2 × 2 × 2 × 2 × 5 × 19 | 3 × 3 × 13 × 13 |
| Divisors count | 20 | 9 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520 | 1, 3, 9, 13, 39, 117, 169, 507, 1521 |
| Number of properties | 0 | 0 |
| Roman numberals | MDXX | MDXXI |
| Base 2 | 101111100002 | 101111100012 |
| Base 3 | 20020223 | 20021003 |
| Base 4 | 1133004 | 1133014 |
| Base 5 | 220405 | 220415 |
| Base 6 | 110126 | 110136 |
| Base 7 | 43017 | 43027 |
| Base 8 | 27608 | 27618 |
| Base 9 | 20689 | 20709 |
| Base 10 | 152010 | 152110 |
| Base 11 | 116211 | 116311 |
| Base 12 | a6812 | a6912 |
| Base 13 | 8cc13 | 90013 |
| Base 14 | 7a814 | 7a914 |
| Base 15 | 6b515 | 6b615 |
| Base 16 | 5f016 | 5f116 |