Compare 399978 vs 399979
| Property | 399978 | 399979 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 7 | 1 |
| Prime factorization | 21 × 35 × 8231 | 3999791 |
| Prime factorization | 2 × 3 × 3 × 3 × 3 × 3 × 823 | 399979 |
| Divisors count | 24 | 2 |
| Divisors | 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 823, 1646, 2469, 4938, 7407, 14814, 22221, 44442, 66663, 133326, 199989, 399978 | 1, 399979 |
| Number of properties | 0 | 4 |
| Chen primes | 13661st | |
| Cousin primes (1st member) | 3813th | |
| Isolated primes | 26251st | |
| Primes | 33858th | |
| Roman numberals | ||
| Base 2 | 11000011010011010102 | 11000011010011010112 |
| Base 3 | 2020222000003 | 2020222000013 |
| Base 4 | 12012212224 | 12012212234 |
| Base 5 | 1002444035 | 1002444045 |
| Base 6 | 123234306 | 123234316 |
| Base 7 | 32540557 | 32540567 |
| Base 8 | 14151528 | 14151538 |
| Base 9 | 6686009 | 6686019 |
| Base 10 | 39997810 | 39997910 |
| Base 11 | 25356711 | 25356811 |
| Base 12 | 17357612 | 17357712 |
| Base 13 | 11009713 | 11009813 |
| Base 14 | a5a9c14 | a5a9d14 |
| Base 15 | 7d7a315 | 7d7a415 |
| Base 16 | 61a6a16 | 61a6b16 |