Compare 61989 vs 61990
| Property | 61989 | 61990 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 206631 | 21 × 51 × 61991 |
| Prime factorization | 3 × 20663 | 2 × 5 × 6199 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 20663, 61989 | 1, 2, 5, 10, 6199, 12398, 30995, 61990 |
| Number of properties | 1 | 0 |
| Semiprimes | 14829th | |
| Roman numberals | ||
| Base 2 | 11110010001001012 | 11110010001001102 |
| Base 3 | 100110002203 | 100110002213 |
| Base 4 | 330202114 | 330202124 |
| Base 5 | 34404245 | 34404305 |
| Base 6 | 11545536 | 11545546 |
| Base 7 | 3455047 | 3455057 |
| Base 8 | 1710458 | 1710468 |
| Base 9 | 1040269 | 1040279 |
| Base 10 | 6198910 | 6199010 |
| Base 11 | 4263411 | 4263511 |
| Base 12 | 2ba5912 | 2ba5a12 |
| Base 13 | 222a513 | 222a613 |
| Base 14 | 1883b14 | 1883c14 |
| Base 15 | 1357915 | 1357a15 |
| Base 16 | f22516 | f22616 |