Compare 391 vs 402
| Property | 391 | 402 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 171 × 231 | 21 × 31 × 671 |
| Prime factorization | 17 × 23 | 2 × 3 × 67 |
| Divisors count | 4 | 8 |
| Divisors | 1, 17, 23, 391 | 1, 2, 3, 6, 67, 134, 201, 402 |
| Number of properties | 1 | 0 |
| Semiprimes | 122nd | |
| Roman numberals | CCCXCI | CDII |
| Base 2 | 1100001112 | 1100100102 |
| Base 3 | 1121113 | 1122203 |
| Base 4 | 120134 | 121024 |
| Base 5 | 30315 | 31025 |
| Base 6 | 14516 | 15106 |
| Base 7 | 10667 | 11137 |
| Base 8 | 6078 | 6228 |
| Base 9 | 4749 | 4869 |
| Base 10 | 39110 | 40210 |
| Base 11 | 32611 | 33611 |
| Base 12 | 28712 | 29612 |
| Base 13 | 24113 | 24c13 |
| Base 14 | 1dd14 | 20a14 |
| Base 15 | 1b115 | 1bc15 |
| Base 16 | 18716 | 19216 |