Compare 61991 vs 61998
| Property | 61991 | 61998 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 619911 | 21 × 31 × 103331 |
| Prime factorization | 61991 | 2 × 3 × 10333 |
| Divisors count | 2 | 8 |
| Divisors | 1, 61991 | 1, 2, 3, 6, 10333, 20666, 30999, 61998 |
| Number of properties | 5 | 0 |
| Chen primes | 2860th | |
| Cousin primes (2nd member) | 826th | |
| Isolated primes | 4579th | |
| Primes | 6232nd | |
| Sophie germain primes | 796th | |
| Roman numberals | ||
| Base 2 | 11110010001001112 | 11110010001011102 |
| Base 3 | 100110002223 | 100110010203 |
| Base 4 | 330202134 | 330202324 |
| Base 5 | 34404315 | 34404435 |
| Base 6 | 11545556 | 11550106 |
| Base 7 | 3455067 | 3455167 |
| Base 8 | 1710478 | 1710568 |
| Base 9 | 1040289 | 1040369 |
| Base 10 | 6199110 | 6199810 |
| Base 11 | 4263611 | 4264211 |
| Base 12 | 2ba5b12 | 2ba6612 |
| Base 13 | 222a713 | 222b113 |
| Base 14 | 1883d14 | 1884614 |
| Base 15 | 1357b15 | 1358315 |
| Base 16 | f22716 | f22e16 |