Order 576.
127 conjugacy classes of subgroups.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. 2−1+4⋊C9 | C2 | semidirect |
| 2. #131⋊C9 | C2 | semidirect |
| 15. #578 | C9 | semidirect |
| 29. 2−1+4 | C2×C9 | semidirect |
| 33. #131 | C2×C9 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| 2−1+4⋊C9 | 2 |
| #131⋊C9 | 2 |
| C3×#578 | 3 |
| C9×D8 | 4 |