Compare 181213 vs 181913
| Property | 181213 | 181913 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1812131 | 1819131 |
| Prime factorization | 181213 | 181913 |
| Divisors count | 2 | 2 |
| Divisors | 1, 181213 | 1, 181913 |
| Number of properties | 6 | 7 |
| Additive primes | 6711th | |
| Chen primes | 6968th | |
| Harmonic primes | 6156th | |
| Isolated primes | 12489th | |
| Long primes | 6182nd | |
| Lucky primes | 2125th | |
| Primes | 16431st | 16484th |
| Pythagorean primes | 8202nd | 8231st |
| Sexy primes (1st member) | 3948th | 3955th |
| Twin primes (2nd member) | 1988th | |
| Roman numberals | ||
| Base 2 | 1011000011110111012 | 1011000110100110012 |
| Base 3 | 1000121201213 | 1000201121123 |
| Base 4 | 2300331314 | 2301221214 |
| Base 5 | 212443235 | 213101235 |
| Base 6 | 35145416 | 35221056 |
| Base 7 | 13532147 | 13552347 |
| Base 8 | 5417358 | 5432318 |
| Base 9 | 3055179 | 3064759 |
| Base 10 | 18121310 | 18191310 |
| Base 11 | 11416a11 | 11474611 |
| Base 12 | 88a5112 | 8933512 |
| Base 13 | 6463613 | 64a5413 |
| Base 14 | 4a07b14 | 4a41b14 |
| Base 15 | 38a5d15 | 38d7815 |
| Base 16 | 2c3dd16 | 2c69916 |