Compare 16991 vs 16999
| Property | 16991 | 16999 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 131 × 13071 | 891 × 1911 |
| Prime factorization | 13 × 1307 | 89 × 191 |
| Divisors count | 4 | 4 |
| Divisors | 1, 13, 1307, 16991 | 1, 89, 191, 16999 |
| Number of properties | 1 | 1 |
| Semiprimes | 4345th | 4347th |
| Roman numberals | ||
| Base 2 | 1000010010111112 | 1000010011001112 |
| Base 3 | 2120220223 | 2120221213 |
| Base 4 | 100211334 | 100212134 |
| Base 5 | 10204315 | 10204445 |
| Base 6 | 2103556 | 2104116 |
| Base 7 | 1003527 | 1003637 |
| Base 8 | 411378 | 411478 |
| Base 9 | 252689 | 252779 |
| Base 10 | 1699110 | 1699910 |
| Base 11 | 1184711 | 1185411 |
| Base 12 | 99bb12 | 9a0712 |
| Base 13 | 797013 | 797813 |
| Base 14 | 629914 | 62a314 |
| Base 15 | 507b15 | 508415 |
| Base 16 | 425f16 | 426716 |