Compare 215 vs 220
| Property | 215 | 220 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 51 × 431 | 22 × 51 × 111 |
| Prime factorization | 5 × 43 | 2 × 2 × 5 × 11 |
| Divisors count | 4 | 12 |
| Divisors | 1, 5, 43, 215 | 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220 |
| Number of properties | 1 | 0 |
| Semiprimes | 71st | |
| Roman numberals | CCXV | CCXX |
| Base 2 | 110101112 | 110111002 |
| Base 3 | 212223 | 220113 |
| Base 4 | 31134 | 31304 |
| Base 5 | 13305 | 13405 |
| Base 6 | 5556 | 10046 |
| Base 7 | 4257 | 4337 |
| Base 8 | 3278 | 3348 |
| Base 9 | 2589 | 2649 |
| Base 10 | 21510 | 22010 |
| Base 11 | 18611 | 19011 |
| Base 12 | 15b12 | 16412 |
| Base 13 | 13713 | 13c13 |
| Base 14 | 11514 | 11a14 |
| Base 15 | e515 | ea15 |
| Base 16 | d716 | dc16 |