Compare 816131 vs 816142
| Property | 816131 | 816142 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 8161311 | 21 × 4080711 |
| Prime factorization | 816131 | 2 × 408071 |
| Divisors count | 2 | 4 |
| Divisors | 1, 816131 | 1, 2, 408071, 816142 |
| Number of properties | 4 | 1 |
| Chen primes | 25166th | |
| Primes | 65131st | |
| Semiprimes | 172918th | |
| Twin primes (1st member) | 6862nd | |
| Ulam primes | 4775th | |
| Roman numberals | ||
| Base 2 | 110001110100000000112 | 110001110100000011102 |
| Base 3 | 11121101120023 | 11121101121113 |
| Base 4 | 30131000034 | 30131000324 |
| Base 5 | 2021040115 | 2021040325 |
| Base 6 | 252542156 | 252542346 |
| Base 7 | 66362517 | 66362657 |
| Base 8 | 30720038 | 30720168 |
| Base 9 | 14734629 | 14734749 |
| Base 10 | 81613110 | 81614210 |
| Base 11 | 50819811 | 5081a811 |
| Base 12 | 33436b12 | 33437a12 |
| Base 13 | 22762413 | 22763213 |
| Base 14 | 1735d114 | 1735dc14 |
| Base 15 | 111c3b15 | 111c4715 |
| Base 16 | c740316 | c740e16 |