Compare 380 vs 391
| Property | 380 | 391 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 51 × 191 | 171 × 231 |
| Prime factorization | 2 × 2 × 5 × 19 | 17 × 23 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380 | 1, 17, 23, 391 |
| Number of properties | 0 | 1 |
| Semiprimes | 122nd | |
| Roman numberals | CCCLXXX | CCCXCI |
| Base 2 | 1011111002 | 1100001112 |
| Base 3 | 1120023 | 1121113 |
| Base 4 | 113304 | 120134 |
| Base 5 | 30105 | 30315 |
| Base 6 | 14326 | 14516 |
| Base 7 | 10527 | 10667 |
| Base 8 | 5748 | 6078 |
| Base 9 | 4629 | 4749 |
| Base 10 | 38010 | 39110 |
| Base 11 | 31611 | 32611 |
| Base 12 | 27812 | 28712 |
| Base 13 | 23313 | 24113 |
| Base 14 | 1d214 | 1dd14 |
| Base 15 | 1a515 | 1b115 |
| Base 16 | 17c16 | 18716 |