Compare 61987 vs 61989
| Property | 61987 | 61989 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 619871 | 31 × 206631 |
| Prime factorization | 61987 | 3 × 20663 |
| Divisors count | 2 | 4 |
| Divisors | 1, 61987 | 1, 3, 20663, 61989 |
| Number of properties | 6 | 1 |
| Additive primes | 2694th | |
| Chen primes | 2859th | |
| Cousin primes (1st member) | 826th | |
| Isolated primes | 4578th | |
| Primes | 6231st | |
| Semiprimes | 14829th | |
| Sexy primes (2nd member) | 1675th | |
| Roman numberals | ||
| Base 2 | 11110010001000112 | 11110010001001012 |
| Base 3 | 100110002113 | 100110002203 |
| Base 4 | 330202034 | 330202114 |
| Base 5 | 34404225 | 34404245 |
| Base 6 | 11545516 | 11545536 |
| Base 7 | 3455027 | 3455047 |
| Base 8 | 1710438 | 1710458 |
| Base 9 | 1040249 | 1040269 |
| Base 10 | 6198710 | 6198910 |
| Base 11 | 4263211 | 4263411 |
| Base 12 | 2ba5712 | 2ba5912 |
| Base 13 | 222a313 | 222a513 |
| Base 14 | 1883914 | 1883b14 |
| Base 15 | 1357715 | 1357915 |
| Base 16 | f22316 | f22516 |