Compare 81661 vs 81672
| Property | 81661 | 81672 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 6 |
| Prime factorization | 1271 × 6431 | 23 × 31 × 411 × 831 |
| Prime factorization | 127 × 643 | 2 × 2 × 2 × 3 × 41 × 83 |
| Divisors count | 4 | 32 |
| Divisors | 1, 127, 643, 81661 | 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 83, 123, 164, 166, 246, 249, 328, 332, 492, 498, 664, 984, 996, 1992, 3403, 6806, 10209, 13612, 20418, 27224, 40836, 81672 |
| Number of properties | 1 | 0 |
| Semiprimes | 19279th | |
| Roman numberals | ||
| Base 2 | 100111110111111012 | 100111111000010002 |
| Base 3 | 110110001113 | 110110002203 |
| Base 4 | 1033233314 | 1033300204 |
| Base 5 | 101031215 | 101031425 |
| Base 6 | 14300216 | 14300406 |
| Base 7 | 4600367 | 4600537 |
| Base 8 | 2373758 | 2374108 |
| Base 9 | 1340149 | 1340269 |
| Base 10 | 8166110 | 8167210 |
| Base 11 | 5639811 | 563a811 |
| Base 12 | 3b31112 | 3b32012 |
| Base 13 | 2b22813 | 2b23613 |
| Base 14 | 21a8d14 | 21a9a14 |
| Base 15 | 192e115 | 192ec15 |
| Base 16 | 13efd16 | 13f0816 |