Compare 217 vs 228
| Property | 217 | 228 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 71 × 311 | 22 × 31 × 191 |
| Prime factorization | 7 × 31 | 2 × 2 × 3 × 19 |
| Divisors count | 4 | 12 |
| Divisors | 1, 7, 31, 217 | 1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228 |
| Number of properties | 1 | 0 |
| Semiprimes | 72nd | |
| Roman numberals | CCXVII | CCXXVIII |
| Base 2 | 110110012 | 111001002 |
| Base 3 | 220013 | 221103 |
| Base 4 | 31214 | 32104 |
| Base 5 | 13325 | 14035 |
| Base 6 | 10016 | 10206 |
| Base 7 | 4307 | 4447 |
| Base 8 | 3318 | 3448 |
| Base 9 | 2619 | 2739 |
| Base 10 | 21710 | 22810 |
| Base 11 | 18811 | 19811 |
| Base 12 | 16112 | 17012 |
| Base 13 | 13913 | 14713 |
| Base 14 | 11714 | 12414 |
| Base 15 | e715 | 10315 |
| Base 16 | d916 | e416 |