Compare 901990 vs 901993
| Property | 901990 | 901993 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 21 × 51 × 901991 | 9019931 |
| Prime factorization | 2 × 5 × 90199 | 901993 |
| Divisors count | 8 | 2 |
| Divisors | 1, 2, 5, 10, 90199, 180398, 450995, 901990 | 1, 901993 |
| Number of properties | 0 | 5 |
| Additive primes | 27544th | |
| Cousin primes (1st member) | 7487th | |
| Isolated primes | 56445th | |
| Primes | 71420th | |
| Ulam primes | 5210th | |
| Roman numberals | ||
| Base 2 | 110111000011011001102 | 110111000011011010012 |
| Base 3 | 12002110220013 | 12002110220113 |
| Base 4 | 31300312124 | 31300312214 |
| Base 5 | 2123304305 | 2123304335 |
| Base 6 | 311555146 | 311555216 |
| Base 7 | 104444657 | 104445017 |
| Base 8 | 33415468 | 33415518 |
| Base 9 | 16242619 | 16242649 |
| Base 10 | 90199010 | 90199310 |
| Base 11 | 56675111 | 56675411 |
| Base 12 | 375b9a12 | 375ba112 |
| Base 13 | 25772b13 | 25773113 |
| Base 14 | 1969dc14 | 196a0114 |
| Base 15 | 12c3ca15 | 12c3cd15 |
| Base 16 | dc36616 | dc36916 |