Compare 1812 vs 1823
| Property | 1812 | 1823 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 31 × 1511 | 18231 |
| Prime factorization | 2 × 2 × 3 × 151 | 1823 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 3, 4, 6, 12, 151, 302, 453, 604, 906, 1812 | 1, 1823 |
| Number of properties | 0 | 6 |
| Isolated primes | 170th | |
| Left-truncatable primes | 61st | |
| Long primes | 110th | |
| Primes | 281st | |
| Safe primes | 36th | |
| Super primes | 60th | |
| Roman numberals | MDCCCXII | MDCCCXXIII |
| Base 2 | 111000101002 | 111000111112 |
| Base 3 | 21110103 | 21111123 |
| Base 4 | 1301104 | 1301334 |
| Base 5 | 242225 | 242435 |
| Base 6 | 122206 | 122356 |
| Base 7 | 51667 | 52137 |
| Base 8 | 34248 | 34378 |
| Base 9 | 24339 | 24459 |
| Base 10 | 181210 | 182310 |
| Base 11 | 13a811 | 140811 |
| Base 12 | 107012 | 107b12 |
| Base 13 | a9513 | aa313 |
| Base 14 | 93614 | 94314 |
| Base 15 | 80c15 | 81815 |
| Base 16 | 71416 | 71f16 |