Compare 420809 vs 420821
| Property | 420809 | 420821 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 4208091 | 2831 × 14871 |
| Prime factorization | 420809 | 283 × 1487 |
| Divisors count | 2 | 4 |
| Divisors | 1, 420809 | 1, 283, 1487, 420821 |
| Number of properties | 5 | 1 |
| Additive primes | 14015th | |
| Chen primes | 14238th | |
| Primes | 35453rd | |
| Semiprimes | 91946th | |
| Sexy primes (2nd member) | 7983rd | |
| Twin primes (1st member) | 3969th | |
| Roman numberals | ||
| Base 2 | 11001101011110010012 | 11001101011110101012 |
| Base 3 | 2101010201123 | 2101010202223 |
| Base 4 | 12122330214 | 12122331114 |
| Base 5 | 1014312145 | 1014312415 |
| Base 6 | 130041056 | 130041256 |
| Base 7 | 34015647 | 34016127 |
| Base 8 | 14657118 | 14657258 |
| Base 9 | 7112159 | 7112289 |
| Base 10 | 42080910 | 42082110 |
| Base 11 | 26818411 | 26819511 |
| Base 12 | 18363512 | 18364512 |
| Base 13 | 1196cc13 | 11970b13 |
| Base 14 | ad4db14 | ad50914 |
| Base 15 | 84a3e15 | 84a4b15 |
| Base 16 | 66bc916 | 66bd516 |