Compare 1811 vs 1813
Property | 1811 | 1813 |
---|---|---|
Type | prime | composite number |
Unique factors | 1 | 2 |
Total factors | 1 | 3 |
Prime factorization | 18111 | 72 × 371 |
Prime factorization | 1811 | 7 × 7 × 37 |
Divisors count | 2 | 6 |
Divisors | 1, 1811 | 1, 7, 37, 49, 259, 1813 |
Number of properties | 8 | 0 |
Additive primes | 149th | |
Dihedral primes | 7th | |
Emirps | 87th | |
Harmonic primes | 100th | |
Isolated primes | 169th | |
Long primes | 109th | |
Primes | 280th | |
Sophie germain primes | 56th | |
Roman numberals | MDCCCXI | MDCCCXIII |
Base 2 | 111000100112 | 111000101012 |
Base 3 | 21110023 | 21110113 |
Base 4 | 1301034 | 1301114 |
Base 5 | 242215 | 242235 |
Base 6 | 122156 | 122216 |
Base 7 | 51657 | 52007 |
Base 8 | 34238 | 34258 |
Base 9 | 24329 | 24349 |
Base 10 | 181110 | 181310 |
Base 11 | 13a711 | 13a911 |
Base 12 | 106b12 | 107112 |
Base 13 | a9413 | a9613 |
Base 14 | 93514 | 93714 |
Base 15 | 80b15 | 80d15 |
Base 16 | 71316 | 71516 |