Compare 399989 vs 400721
| Property | 399989 | 400721 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3999891 | 4007211 |
| Prime factorization | 399989 | 400721 |
| Divisors count | 2 | 2 |
| Divisors | 1, 399989 | 1, 400721 |
| Number of properties | 7 | 4 |
| Additive primes | 13373rd | |
| Chen primes | 13663rd | 13686th |
| Happy primes | 4996th | 5007th |
| Isolated primes | 26253rd | |
| Primes | 33860th | 33913th |
| Sexy primes (2nd member) | 7650th | |
| Sophie germain primes | 3589th | |
| Twin primes (1st member) | 3809th | |
| Roman numberals | ||
| Base 2 | 11000011010011101012 | 11000011101010100012 |
| Base 3 | 2020222001023 | 2021002001123 |
| Base 4 | 12012213114 | 12013111014 |
| Base 5 | 1002444245 | 1003103415 |
| Base 6 | 123234456 | 123311056 |
| Base 7 | 32541027 | 32561667 |
| Base 8 | 14151658 | 14165218 |
| Base 9 | 6686129 | 6706159 |
| Base 10 | 39998910 | 40072110 |
| Base 11 | 25357711 | 25408211 |
| Base 12 | 17358512 | 173a9512 |
| Base 13 | 1100a513 | 11051913 |
| Base 14 | a5aa914 | a606d14 |
| Base 15 | 7d7ae15 | 7daeb15 |
| Base 16 | 61a7516 | 61d5116 |