Compare 405989 vs 405998
| Property | 405989 | 405998 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 4059891 | 21 × 2029991 |
| Prime factorization | 405989 | 2 × 202999 |
| Divisors count | 2 | 4 |
| Divisors | 1, 405989 | 1, 2, 202999, 405998 |
| Number of properties | 4 | 1 |
| Chen primes | 13833rd | |
| Primes | 34303rd | |
| Semiprimes | 88835th | |
| Super primes | 3666th | |
| Twin primes (1st member) | 3858th | |
| Roman numberals | ||
| Base 2 | 11000110001111001012 | 11000110001111011102 |
| Base 3 | 2021212201223 | 2021212202223 |
| Base 4 | 12030132114 | 12030132324 |
| Base 5 | 1004424245 | 1004424435 |
| Base 6 | 124113256 | 124113426 |
| Base 7 | 33104337 | 33104457 |
| Base 8 | 14307458 | 14307568 |
| Base 9 | 6778189 | 6778289 |
| Base 10 | 40598910 | 40599810 |
| Base 11 | 25803111 | 25803a11 |
| Base 12 | 176b4512 | 176b5212 |
| Base 13 | 112a3c13 | 112a4813 |
| Base 14 | a7d5314 | a7d5c14 |
| Base 15 | 8045e15 | 8046815 |
| Base 16 | 631e516 | 631ee16 |