Compare 181201 vs 181205
| Property | 181201 | 181205 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1812011 | 51 × 362411 |
| Prime factorization | 181201 | 5 × 36241 |
| Divisors count | 2 | 4 |
| Divisors | 1, 181201 | 1, 5, 36241, 181205 |
| Number of properties | 6 | 1 |
| Additive primes | 6692nd | |
| Emirps | 3762nd | |
| Harmonic primes | 6155th | |
| Primes | 16429th | |
| Pythagorean primes | 8201st | |
| Semiprimes | 41198th | |
| Twin primes (2nd member) | 1987th | |
| Roman numberals | ||
| Base 2 | 1011000011110100012 | 1011000011110101012 |
| Base 3 | 1000121200113 | 1000121200223 |
| Base 4 | 2300331014 | 2300331114 |
| Base 5 | 212443015 | 212443105 |
| Base 6 | 35145216 | 35145256 |
| Base 7 | 13531667 | 13532037 |
| Base 8 | 5417218 | 5417258 |
| Base 9 | 3055049 | 3055089 |
| Base 10 | 18120110 | 18120510 |
| Base 11 | 11415911 | 11416211 |
| Base 12 | 88a4112 | 88a4512 |
| Base 13 | 6462713 | 6462b13 |
| Base 14 | 4a06d14 | 4a07314 |
| Base 15 | 38a5115 | 38a5515 |
| Base 16 | 2c3d116 | 2c3d516 |