Compare 811 vs 812
| Property | 811 | 812 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 8111 | 22 × 71 × 291 |
| Prime factorization | 811 | 2 × 2 × 7 × 29 |
| Divisors count | 2 | 12 |
| Divisors | 1, 811 | 1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812 |
| Number of properties | 4 | 0 |
| Chen primes | 96th | |
| Long primes | 49th | |
| Primes | 141st | |
| Twin primes (2nd member) | 31st | |
| Roman numberals | DCCCXI | DCCCXII |
| Base 2 | 11001010112 | 11001011002 |
| Base 3 | 10100013 | 10100023 |
| Base 4 | 302234 | 302304 |
| Base 5 | 112215 | 112225 |
| Base 6 | 34316 | 34326 |
| Base 7 | 22367 | 22407 |
| Base 8 | 14538 | 14548 |
| Base 9 | 11019 | 11029 |
| Base 10 | 81110 | 81210 |
| Base 11 | 67811 | 67911 |
| Base 12 | 57712 | 57812 |
| Base 13 | 4a513 | 4a613 |
| Base 14 | 41d14 | 42014 |
| Base 15 | 39115 | 39215 |
| Base 16 | 32b16 | 32c16 |