Finite Group Databasebeta

C19⋊Dic19 #13089657

order1444
isoclinismisoclinic class of C19⋊D19
automorphism?
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C19

Aliases

unambiguous semidirect productC19⋊Dic19

Splittings

derived, SylowC192 ⋊ C4

Subgroups

subgroupG/H
center, Frattini, hypercenterC2C19⋊D19
commutator, hypocenterC192C4
Fitting, socle, prime radical, cosocleC2×C192C2
LCSG ▷ C192
UCSC1 ◁ C2

66 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 1444

Polycyclic presentation:

2^2,19^2|a^2=b,c^a=c^18,d^a=d^18

Conjugacy classes & character table

364 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#16864558, #16864559, (C19⋊C3)⋊Dic19, …
maximal normal subgroup of#16864558, #16864559, (C19⋊C3)⋊Dic19, …
maximal quotient ofC3×C19⋊Dic19, C3⋊(C19⋊Dic19), C19⋊(C19⋊#157), …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1444, 6);