# Deltopyramidal heptachiliadiacosichoron

The **deltopyramidal heptachiliadiacosichoron** is a convex isochoric polychoron with 7200 kite pyramids as cells. It can be obtained as the dual of the prismatorhombated hecatonicosachoron.

Deltopyramidal heptachiliadiacosichoron | |
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Rank | 4 |

Type | Uniform dual |

Notation | |

Coxeter diagram | m5o3m3m () |

Elements | |

Cells | 7200 kite pyramids |

Faces | 7200+7200 scalene triangles, 3600 kites |

Edges | 1440+2400+2400+3600+3600 |

Vertices | 120+600+720+1200 |

Vertex figure | 720 pentagonal bipyramids, 1200 hexagonal bipyramids, 600 triakis tetrahedra, 120 deltoidal hexecontahedra |

Measures (edge length 1) | |

Central density | 1 |

Related polytopes | |

Dual | Prismatorhombated hecatonicosachoron |

Abstract & topological properties | |

Flag count | 230400 |

Euler characteristic | 0 |

Orientable | Yes |

Properties | |

Symmetry | H_{4}, order 14400 |

Convex | Yes |

Nature | Tame |

It can also be constructed as the convex hull of a hecatonicosachoron, a hexacosichoron, a rectified hexacosichoron, and a rectified hecatonicosachoron. If the hecatonicosachoron has edge length 1, the hexacosichoron has edge length , the rectified hexacosichoron has edge length , and the rectified hecatonicosachoron has edge length .