Compare 201981 vs 201985
| Property | 201981 | 201985 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 3 | 4 |
| Total factors | 3 | 4 |
| Prime factorization | 31 × 131 × 51791 | 51 × 71 × 291 × 1991 |
| Prime factorization | 3 × 13 × 5179 | 5 × 7 × 29 × 199 |
| Divisors count | 8 | 16 |
| Divisors | 1, 3, 13, 39, 5179, 15537, 67327, 201981 | 1, 5, 7, 29, 35, 145, 199, 203, 995, 1015, 1393, 5771, 6965, 28855, 40397, 201985 |
| Number of properties | 0 | 0 |
| Roman numberals | ||
| Base 2 | 1100010100111111012 | 1100010101000000012 |
| Base 3 | 1010210012103 | 1010210012213 |
| Base 4 | 3011033314 | 3011100014 |
| Base 5 | 224304115 | 224304205 |
| Base 6 | 41550336 | 41550416 |
| Base 7 | 15006037 | 15006107 |
| Base 8 | 6123758 | 6124018 |
| Base 9 | 3370539 | 3370579 |
| Base 10 | 20198110 | 20198510 |
| Base 11 | 12882a11 | 12883311 |
| Base 12 | 98a7912 | 98a8112 |
| Base 13 | 70c2013 | 70c2413 |
| Base 14 | 5387314 | 5387714 |
| Base 15 | 3eca615 | 3ecaa15 |
| Base 16 | 314fd16 | 3150116 |