Compare 80 vs 87
| Property | 80 | 87 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 24 × 51 | 31 × 291 |
| Prime factorization | 2 × 2 × 2 × 2 × 5 | 3 × 29 |
| Divisors count | 10 | 4 |
| Divisors | 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 | 1, 3, 29, 87 |
| Number of properties | 0 | 1 |
| Semiprimes | 30th | |
| Roman numberals | LXXX | LXXXVII |
| Base 2 | 10100002 | 10101112 |
| Base 3 | 22223 | 100203 |
| Base 4 | 11004 | 11134 |
| Base 5 | 3105 | 3225 |
| Base 6 | 2126 | 2236 |
| Base 7 | 1437 | 1537 |
| Base 8 | 1208 | 1278 |
| Base 9 | 889 | 1069 |
| Base 10 | 8010 | 8710 |
| Base 11 | 7311 | 7a11 |
| Base 12 | 6812 | 7312 |
| Base 13 | 6213 | 6913 |
| Base 14 | 5a14 | 6314 |
| Base 15 | 5515 | 5c15 |
| Base 16 | 5016 | 5716 |