Compare 399979 vs 400009
| Property | 399979 | 400009 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 3999791 | 4000091 |
| Prime factorization | 399979 | 400009 |
| Divisors count | 2 | 2 |
| Divisors | 1, 399979 | 1, 400009 |
| Number of properties | 4 | 5 |
| Additive primes | 13374th | |
| Chen primes | 13661st | 13664th |
| Cousin primes (1st member) | 3813th | |
| Happy primes | 4997th | |
| Isolated primes | 26251st | 26254th |
| Primes | 33858th | 33861st |
| Roman numberals | ||
| Base 2 | 11000011010011010112 | 11000011010100010012 |
| Base 3 | 2020222000013 | 2020222010113 |
| Base 4 | 12012212234 | 12012220214 |
| Base 5 | 1002444045 | 1003000145 |
| Base 6 | 123234316 | 123235216 |
| Base 7 | 32540567 | 32541317 |
| Base 8 | 14151538 | 14152118 |
| Base 9 | 6686019 | 6686349 |
| Base 10 | 39997910 | 40000910 |
| Base 11 | 25356811 | 25359511 |
| Base 12 | 17357712 | 1735a112 |
| Base 13 | 11009813 | 1100bc13 |
| Base 14 | a5a9d14 | a5ac114 |
| Base 15 | 7d7a415 | 7d7c415 |
| Base 16 | 61a6b16 | 61a8916 |