Compare 991118 vs 991129
| Property | 991118 | 991129 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 4955591 | 9911291 |
| Prime factorization | 2 × 495559 | 991129 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 495559, 991118 | 1, 991129 |
| Number of properties | 1 | 4 |
| Additive primes | 29881st | |
| Emirps | 10974th | |
| Primes | 77861st | |
| Semiprimes | 208257th | |
| Twin primes (2nd member) | 8109th | |
| Roman numberals | ||
| Base 2 | 111100011111100011102 | 111100011111100110012 |
| Base 3 | 12121001200023 | 12121001201113 |
| Base 4 | 33013320324 | 33013321214 |
| Base 5 | 2232034335 | 2232040045 |
| Base 6 | 331243026 | 331243216 |
| Base 7 | 112653627 | 112654067 |
| Base 8 | 36176168 | 36176318 |
| Base 9 | 17705029 | 17705149 |
| Base 10 | 99111810 | 99112910 |
| Base 11 | 61770711 | 61771711 |
| Base 12 | 3b969212 | 3b96a112 |
| Base 13 | 28917b13 | 28918913 |
| Base 14 | 1bb2a214 | 1bb2ad14 |
| Base 15 | 1489e815 | 148a0415 |
| Base 16 | f1f8e16 | f1f9916 |