Compare 205991 vs 205997
| Property | 205991 | 205997 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 2059911 | 111 × 611 × 3071 |
| Prime factorization | 205991 | 11 × 61 × 307 |
| Divisors count | 2 | 8 |
| Divisors | 1, 205991 | 1, 11, 61, 307, 671, 3377, 18727, 205997 |
| Number of properties | 5 | 0 |
| Chen primes | 7717th | |
| Happy primes | 2810th | |
| Primes | 18463rd | |
| Twin primes (1st member) | 2211th | |
| Ulam primes | 1331st | |
| Roman numberals | ||
| Base 2 | 1100100100101001112 | 1100100100101011012 |
| Base 3 | 1011101200223 | 1011101201123 |
| Base 4 | 3021022134 | 3021022314 |
| Base 5 | 230424315 | 230424425 |
| Base 6 | 42253556 | 42254056 |
| Base 7 | 15153627 | 15154017 |
| Base 8 | 6222478 | 6222558 |
| Base 9 | 3435089 | 3435159 |
| Base 10 | 20599110 | 20599710 |
| Base 11 | 13084511 | 13085011 |
| Base 12 | 9b25b12 | 9b26512 |
| Base 13 | 729b613 | 729bc13 |
| Base 14 | 550d914 | 5510114 |
| Base 15 | 4107b15 | 4108215 |
| Base 16 | 324a716 | 324ad16 |