Acronym	gektabcadont (old: giktabacadint)
Name	great skewtrigonary biprismatocellidispenteractitriacontiditeron
Circumradius	3/2 = 1.5
Colonel of regiment	skatbacadint
Face vector	640, 2880, 3920, 1920, 172
Confer	general polytopal classes: Wythoffian polytera
External links

As abstract polytope gektabcadont is isomorphic to skatbacadint, thereby replacing octagons by octagrams, resp. socco by gocco and op by stop, resp. steth by gittith, soccope by goccope, and todip by tistodip. – As such gektabcadont is a lieutenant.

Incidence matrix according to Dynkin symbol

x3o3o3x4x4/3*c

. . . . .      | 640 |   3   3   3 |   3   6   6   3   3   3 |   1   3   3   3   3   6   1  1  3 |  1  1  3  3  1
---------------+-----+-------------+-------------------------+-----------------------------------+---------------
x . . . .      |   2 | 960   *   * |   2   2   2   0   0   0 |   1   2   2   1   1   2   0  0  0 |  1  1  2  1  0
. . . x .      |   2 |   * 960   * |   0   2   0   2   0   1 |   0   1   0   2   0   2   1  0  2 |  1  0  1  2  1
. . . . x      |   2 |   *   * 960 |   0   0   2   0   2   1 |   0   0   1   0   2   2   0  1  2 |  0  1  1  2  1
---------------+-----+-------------+-------------------------+-----------------------------------+---------------
x3o . . .      |   3 |   3   0   0 | 640   *   *   *   *   * |   1   1   1   0   0   0   0  0  0 |  1  1  1  0  0
x . . x .      |   4 |   2   2   0 |   * 960   *   *   *   * |   0   1   0   1   0   1   0  0  0 |  1  0  1  1  0
x . . . x      |   4 |   2   0   2 |   *   * 960   *   *   * |   0   0   1   0   1   1   0  0  0 |  0  1  1  1  0
. . o3x .      |   3 |   0   3   0 |   *   *   * 640   *   * |   0   0   0   1   0   0   1  0  1 |  1  0  0  1  1
. . o . x4/3*c |   4 |   0   0   4 |   *   *   *   * 480   * |   0   0   0   0   1   0   0  1  1 |  0  1  0  1  1
. . . x4x      |   8 |   0   4   4 |   *   *   *   *   * 240 |   0   0   0   0   0   2   0  0  2 |  0  0  1  2  1
---------------+-----+-------------+-------------------------+-----------------------------------+---------------
x3o3o . .      ♦   4 |   6   0   0 |   4   0   0   0   0   0 | 160   *   *   *   *   *   *  *  * |  1  1  0  0  0
x3o . x .      ♦   6 |   6   3   0 |   2   3   0   0   0   0 |   * 320   *   *   *   *   *  *  * |  1  0  1  0  0
x3o . . x      ♦   6 |   6   0   3 |   2   0   3   0   0   0 |   *   * 320   *   *   *   *  *  * |  0  1  1  0  0
x . o3x .      ♦   6 |   3   6   0 |   0   3   0   2   0   0 |   *   *   * 320   *   *   *  *  * |  1  0  0  1  0
x . o . x4/3*c ♦   8 |   4   0   8 |   0   0   4   0   2   0 |   *   *   *   * 240   *   *  *  * |  0  1  0  1  0
x . . x4x      ♦  16 |   8   8   8 |   0   4   4   0   0   2 |   *   *   *   *   * 240   *  *  * |  0  0  1  1  0
. o3o3x .      ♦   4 |   0   6   0 |   0   0   0   4   0   0 |   *   *   *   *   *   * 160  *  * |  1  0  0  0  1
. o3o . x4/3*c ♦   8 |   0   0  12 |   0   0   0   0   6   0 |   *   *   *   *   *   *   * 80  * |  0  1  0  0  1
. . o3x4x4/3*c ♦  24 |   0  24  24 |   0   0   0   8   6   6 |   *   *   *   *   *   *   *  * 80 |  0  0  0  1  1
---------------+-----+-------------+-------------------------+-----------------------------------+---------------
x3o3o3x .      ♦  20 |  30  30   0 |  20  30   0  20   0   0 |   5  10   0  10   0   0   5  0  0 | 32  *  *  *  *
x3o3o . x4/3*c ♦  64 |  96   0  96 |  64   0  96   0  48   0 |  16   0  32   0  24   0   0  8  0 |  * 10  *  *  *
x3o . x4x      ♦  24 |  24  12  12 |   8  12  12   0   0   3 |   0   4   4   0   0   3   0  0  0 |  *  * 80  *  *
x . o3x4x4/3*c ♦  48 |  24  48  48 |   0  24  24  16  12  12 |   0   0   0   8   6   6   0  0  2 |  *  *  * 40  *
. o3o3x4x4/3*c ♦  64 |   0  96  96 |   0   0   0  64  48  24 |   0   0   0   0   0   0  16  8  8 |  *  *  *  * 10