4 21 Polytope - Birectified 4_21 Polytope

Birectified 4_21 Polytope

Birectified 421 polytope
Type Uniform 8-polytope
Schläfli symbol t2{3,3,3,3,32,1}
Coxeter symbol t2(421)
Coxeter-Dynkin diagram
7-faces 19680 total:

17280 t2{36}
2160 t2{35,4}
240 t1(321)

6-faces 382560
5-faces 2600640
4-faces 7741440
Cells 9918720
Faces 5806080
Edges 1451520
Vertices 60480
Vertex figure 5-demicube-triangular duoprism
Coxeter group E8,
Properties convex

The birectified 421can be seen as a second rectification of the uniform 421 polytope. Vertices of this polytope are positioned at the centers of all the 60480 triangular faces of the 421.

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