Order 648.
57 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2 | D3×D27 |
| commutator, Fitting, cosocle | C2×C3×C27 | C22 |
| Frattini | C2×C9 | D32 |
| socle, prime radical | C2×C32 | C2×D9 |
| hypocenter | C3×C27 | Q8 |
| LCS | G ▷ C2×C3×C27 ▷ C3×C27 | |
| UCS | C1 ◁ C2 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 14. C3×C27 | Q8 | semidirect |
| 29. C27 | Dic6 | semidirect |
| 53. C3 | Dic54 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C3⋊Dic27 | 2 |
| Dic3×C27 | 2 |
| C3×Dic27 | 2 |
| #6189 | 3 |
| Dic54 | 3 |