Compare 2180 vs 2191
| Property | 2180 | 2191 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 51 × 1091 | 71 × 3131 |
| Prime factorization | 2 × 2 × 5 × 109 | 7 × 313 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180 | 1, 7, 313, 2191 |
| Number of properties | 0 | 1 |
| Semiprimes | 628th | |
| Roman numberals | MMCLXXX | MMCXCI |
| Base 2 | 1000100001002 | 1000100011112 |
| Base 3 | 22222023 | 100000113 |
| Base 4 | 2020104 | 2020334 |
| Base 5 | 322105 | 322315 |
| Base 6 | 140326 | 140516 |
| Base 7 | 62337 | 62507 |
| Base 8 | 42048 | 42178 |
| Base 9 | 28829 | 30049 |
| Base 10 | 218010 | 219110 |
| Base 11 | 170211 | 171211 |
| Base 12 | 131812 | 132712 |
| Base 13 | cb913 | cc713 |
| Base 14 | b1a14 | b2714 |
| Base 15 | 9a515 | 9b115 |
| Base 16 | 88416 | 88f16 |