Order 216.
53 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C22 | AGL(1,ℤ/9) |
| commutator, hypocenter | C9 | C2×C3×C4 |
| Frattini | C2×C3 | C2×C3×D3 |
| Fitting | C22×3−1+2 | C2 |
| socle | C22×C3 | C3×D3 |
| prime radical | C22×C32 | D3 |
| cosocle | C2×C9 | C22×C3 |
| LCS | G ▷ C9 | |
| UCS | C1 ◁ C22 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. 3−1+2⋊C4 | C2 | direct (N × H) |
| 4. C2×Dic9 | C3 | semidirect |
| 5. C2×3−1+2 | C4 | semidirect |
| 11. Dic9 | C2×C3 | semidirect |
| 12. 3−1+2 | C2×C4 | semidirect |
| 19. C2×C9 | C3×C4 | semidirect |
| 27. C9 | C2×C3×C4 | semidirect |
| 37. C2 | 3−1+2⋊C4 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×3−1+2 | 2 |
| 3−1+2⋊C4 | 2 |
| C2×C3×Dic3 | 3 |
| C2×Dic9 | 3 |