Compare 641981 vs 642149
| Property | 641981 | 642149 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6419811 | 6421491 |
| Prime factorization | 641981 | 642149 |
| Divisors count | 2 | 2 |
| Divisors | 1, 641981 | 1, 642149 |
| Number of properties | 4 | 3 |
| Additive primes | 20411th | |
| Chen primes | 20429th | 20432nd |
| Isolated primes | 40931st | |
| Primes | 52222nd | 52232nd |
| Twin primes (1st member) | 5649th | |
| Roman numberals | ||
| Base 2 | 100111001011101111012 | 100111001100011001012 |
| Base 3 | 10121211220023 | 10121212120223 |
| Base 4 | 21302323314 | 21303012114 |
| Base 5 | 1310204115 | 1310220445 |
| Base 6 | 214320456 | 214325256 |
| Base 7 | 53124447 | 53131047 |
| Base 8 | 23456758 | 23461458 |
| Base 9 | 11775629 | 11777689 |
| Base 10 | 64198110 | 64214910 |
| Base 11 | 3a936a11 | 3a950211 |
| Base 12 | 26b62512 | 26b74512 |
| Base 13 | 19629213 | 19639113 |
| Base 14 | 129d5b14 | 12a03b14 |
| Base 15 | ca33b15 | ca3ee15 |
| Base 16 | 9cbbd16 | 9cc6516 |