Compare 990981 vs 990985
| Property | 990981 | 990985 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 6 | 2 |
| Prime factorization | 33 × 172 × 1271 | 51 × 1981971 |
| Prime factorization | 3 × 3 × 3 × 17 × 17 × 127 | 5 × 198197 |
| Divisors count | 24 | 4 |
| Divisors | 1, 3, 9, 17, 27, 51, 127, 153, 289, 381, 459, 867, 1143, 2159, 2601, 3429, 6477, 7803, 19431, 36703, 58293, 110109, 330327, 990981 | 1, 5, 198197, 990985 |
| Number of properties | 0 | 1 |
| Semiprimes | 208234th | |
| Roman numberals | ||
| Base 2 | 111100011111000001012 | 111100011111000010012 |
| Base 3 | 12121001010003 | 12121001010113 |
| Base 4 | 33013300114 | 33013300214 |
| Base 5 | 2232024115 | 2232024205 |
| Base 6 | 331235136 | 331235216 |
| Base 7 | 112651057 | 112651127 |
| Base 8 | 36174058 | 36174118 |
| Base 9 | 17703309 | 17703349 |
| Base 10 | 99098110 | 99098510 |
| Base 11 | 6175a211 | 6175a611 |
| Base 12 | 3b959912 | 3b95a112 |
| Base 13 | 2890a413 | 2890a813 |
| Base 14 | 1bb20514 | 1bb20914 |
| Base 15 | 14895615 | 14895a15 |
| Base 16 | f1f0516 | f1f0916 |