Compare 27991 vs 28009
| Property | 27991 | 28009 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 231 × 12171 | 371 × 7571 |
| Prime factorization | 23 × 1217 | 37 × 757 |
| Divisors count | 4 | 4 |
| Divisors | 1, 23, 1217, 27991 | 1, 37, 757, 28009 |
| Number of properties | 1 | 1 |
| Semiprimes | 6980th | 6985th |
| Roman numberals | ||
| Base 2 | 1101101010101112 | 1101101011010012 |
| Base 3 | 11021012013 | 11021021013 |
| Base 4 | 123111134 | 123112214 |
| Base 5 | 13434315 | 13440145 |
| Base 6 | 3333316 | 3334016 |
| Base 7 | 1444157 | 1444427 |
| Base 8 | 665278 | 665518 |
| Base 9 | 423519 | 423719 |
| Base 10 | 2799110 | 2800910 |
| Base 11 | 1a03711 | 1a05311 |
| Base 12 | 1424712 | 1426112 |
| Base 13 | c98213 | c99713 |
| Base 14 | a2b514 | a2c914 |
| Base 15 | 846115 | 847415 |
| Base 16 | 6d5716 | 6d6916 |