Order 648.
54 conjugacy classes of subgroups.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 4. Dic54 | C3 | semidirect |
| 11. C27⋊C3 | Q8 | semidirect |
| 24. C27 | C3×Q8 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C4×C27⋊C3 | 2 |
| (C27⋊C3)⋊C4 | 2 |
| C3×Dic18 | 3 |
| Dic54 | 3 |