Order 216.
58 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2 | D3×D9 |
| commutator, Fitting, cosocle | C2×C3×C9 | C22 |
| Frattini | C2×C3 | D32 |
| socle | C2×C32 | C2×D3 |
| hypocenter | C3×C9 | D4 |
| LCS | G ▷ C2×C3×C9 ▷ C3×C9 | |
| UCS | C1 ◁ C2 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×C3⋊D9 | C2 | semidirect |
| 2. C2×C3×D9 | C2 | semidirect |
| 3. C9×Dic3 | C2 | semidirect |
| 14. C2×D9 | D3 | semidirect |
| 16. C3×C9 | D4 | semidirect |
| 33. Dic3 | D9 | semidirect |
| 36. C9 | #67 | semidirect |
| 50. C3 | D36 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C3⋊D9 | 2 |
| C2×C3×D9 | 2 |
| C9×Dic3 | 2 |
| #626 | 3 |
| D36 | 3 |