Compare 642149 vs 643691
| Property | 642149 | 643691 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6421491 | 6436911 |
| Prime factorization | 642149 | 643691 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642149 | 1, 643691 |
| Number of properties | 3 | 7 |
| Additive primes | 20459th | |
| Chen primes | 20432nd | 20470th |
| Primes | 52232nd | 52339th |
| Prime triplets (1st member) | 2065th | |
| Sexy primes (1st member) | 11334th | |
| Sexy prime triplets (1st member) | 2079th | |
| Twin primes (1st member) | 5649th | 5658th |
| Roman numberals | ||
| Base 2 | 100111001100011001012 | 100111010010011010112 |
| Base 3 | 10121212120223 | 10122002221023 |
| Base 4 | 21303012114 | 21310212234 |
| Base 5 | 1310220445 | 1310442315 |
| Base 6 | 214325256 | 214440156 |
| Base 7 | 53131047 | 53204367 |
| Base 8 | 23461458 | 23511538 |
| Base 9 | 11777689 | 11808729 |
| Base 10 | 64214910 | 64369110 |
| Base 11 | 3a950211 | 3aa68411 |
| Base 12 | 26b74512 | 27060b12 |
| Base 13 | 19639113 | 196ca913 |
| Base 14 | 12a03b14 | 12a81d14 |
| Base 15 | ca3ee15 | caacb15 |
| Base 16 | 9cc6516 | 9d26b16 |