Compare 391 vs 392
| Property | 391 | 392 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 5 |
| Prime factorization | 171 × 231 | 23 × 72 |
| Prime factorization | 17 × 23 | 2 × 2 × 2 × 7 × 7 |
| Divisors count | 4 | 12 |
| Divisors | 1, 17, 23, 391 | 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392 |
| Number of properties | 1 | 0 |
| Semiprimes | 122nd | |
| Roman numberals | CCCXCI | CCCXCII |
| Base 2 | 1100001112 | 1100010002 |
| Base 3 | 1121113 | 1121123 |
| Base 4 | 120134 | 120204 |
| Base 5 | 30315 | 30325 |
| Base 6 | 14516 | 14526 |
| Base 7 | 10667 | 11007 |
| Base 8 | 6078 | 6108 |
| Base 9 | 4749 | 4759 |
| Base 10 | 39110 | 39210 |
| Base 11 | 32611 | 32711 |
| Base 12 | 28712 | 28812 |
| Base 13 | 24113 | 24213 |
| Base 14 | 1dd14 | 20014 |
| Base 15 | 1b115 | 1b215 |
| Base 16 | 18716 | 18816 |