Compare 641981 vs 641993
| Property | 641981 | 641993 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6419811 | 111 × 583631 |
| Prime factorization | 641981 | 11 × 58363 |
| Divisors count | 2 | 4 |
| Divisors | 1, 641981 | 1, 11, 58363, 641993 |
| Number of properties | 4 | 1 |
| Additive primes | 20411th | |
| Chen primes | 20429th | |
| Isolated primes | 40931st | |
| Primes | 52222nd | |
| Semiprimes | 137548th | |
| Roman numberals | ||
| Base 2 | 100111001011101111012 | 100111001011110010012 |
| Base 3 | 10121211220023 | 10121211221123 |
| Base 4 | 21302323314 | 21302330214 |
| Base 5 | 1310204115 | 1310204335 |
| Base 6 | 214320456 | 214321056 |
| Base 7 | 53124447 | 53124627 |
| Base 8 | 23456758 | 23457118 |
| Base 9 | 11775629 | 11775759 |
| Base 10 | 64198110 | 64199310 |
| Base 11 | 3a936a11 | 3a938011 |
| Base 12 | 26b62512 | 26b63512 |
| Base 13 | 19629213 | 1962a113 |
| Base 14 | 129d5b14 | 129d6914 |
| Base 15 | ca33b15 | ca34815 |
| Base 16 | 9cbbd16 | 9cbc916 |