Compare 287 vs 290
| Property | 287 | 290 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 71 × 411 | 21 × 51 × 291 |
| Prime factorization | 7 × 41 | 2 × 5 × 29 |
| Divisors count | 4 | 8 |
| Divisors | 1, 7, 41, 287 | 1, 2, 5, 10, 29, 58, 145, 290 |
| Number of properties | 1 | 0 |
| Semiprimes | 89th | |
| Roman numberals | CCLXXXVII | CCXC |
| Base 2 | 1000111112 | 1001000102 |
| Base 3 | 1011223 | 1012023 |
| Base 4 | 101334 | 102024 |
| Base 5 | 21225 | 21305 |
| Base 6 | 11556 | 12026 |
| Base 7 | 5607 | 5637 |
| Base 8 | 4378 | 4428 |
| Base 9 | 3489 | 3529 |
| Base 10 | 28710 | 29010 |
| Base 11 | 24111 | 24411 |
| Base 12 | 1bb12 | 20212 |
| Base 13 | 19113 | 19413 |
| Base 14 | 16714 | 16a14 |
| Base 15 | 14215 | 14515 |
| Base 16 | 11f16 | 12216 |