Order 900.
48 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, hypercenter | C2×C5 | D45 |
| commutator, hypocenter | C5×C9 | C4×C5 |
| Frattini | C2×C3 | C5×D15 |
| Fitting | C2×C52×C9 | C2 |
| socle, prime radical | C2×C3×C52 | D3 |
| cosocle | C2×C5×C9 | C2×C5 |
| LCS | G ▷ C5×C9 | |
| UCS | C1 ◁ C2×C5 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 3. C52×C9 | C4 | semidirect |
| 4. Dic45 | C5 | direct (N × H) |
| 16. C5×C9 | Dic5 | semidirect |
| 17. C5×C9 | C4×C5 | semidirect |
| 22. C52 | Dic9 | semidirect |
| 33. C9 | C5×Dic5 | semidirect |
| 36. C5 | C5×Dic9 | semidirect |
| 37. C5 | Dic45 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C52×C9 | 2 |
| C5×Dic15 | 3 |
| Dic45 | 5 |
| C5×Dic9 | 5 |