| order | 19890 |
| automorphism | ? |
| homology | Abelianization (H1) = C2×C5 · Schur multiplier (H2) = C1 |
| direct product | C5×D1989 |
| unambiguous semidirect product | C9⋊(C5×D221) |
| unambiguous semidirect product | C13⋊(C5×D153) |
| unambiguous semidirect product | C17⋊(C5×D117) |
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C5 | D1989 |
| commutator, cosocle, hypocenter | C9×C13×C17 | C2×C5 |
| Frattini | C3 | C5×D663 |
| Fitting | C5×C9×C13×C17 | C2 |
| socle | C3×C5×C13×C17 | D3 |
| LCS | G ▷ C9×C13×C17 | |
| UCS | C1 ◁ C5 | |
48 conjugacy classes of subgroups.
| transitive degree | μt(G) = 9945 |
4980 conjugacy classes. The character table is too large to display.
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(19890, 13);