-
refactorable number. a
primitive semiperfect number. an
untouchable number. a
hexadecagonal number. an Erdős–Woods number,
since it is
possible to find sequences...
- In geometry, a
pyramid is a
polyhedron formed by
connecting a
polygonal base and a point,
called the apex. Each base edge and apex form a triangle, called...
-
octadecahedra are the
heptadecagonal pyramid,
hexadecagonal prism, and the
octagonal antiprism. The
hexadecagonal prism and the
octagonal antiprism are uniform...
- by
Miksa Róth. One of the most
famous parts of the
building is the
hexadecagonal (sixteen-sided)
central hall, with huge
chambers adjoining it: the Lower...
-
palindromic in base 9: 408049 27000 = 303 27405 =
heptagonal number,
hexadecagonal number, 48-gonal number, 80-gonal number,
smallest integer that is polygonal...
-
representation of
languages 640 = 27 × 5,
Harshad number,
refactorable number,
hexadecagonal number,
number of 1's in all
partitions of 24 into odd parts, number...
- number. Forty-five is also the
fourth hexagonal number and the
second hexadecagonal number, or 16-gonal number. It is also the
second smallest triangle...
-
topologically distinct forms of a heptadecahedron, for
example the
hexadecagonal pyramid and
pentadecagonal prism.
There are 6,415,851,530,241 topologically...
-
Pentadecagonal 1/2(13n2 − 11n) 1 15 42 82 135 201 280 372 477 595 A051867 16
Hexadecagonal 1/2(14n2 − 12n) 1 16 45 88 145 216 301 400 513 640 A051868 17 Heptadecagonal...
- towers, and Neo-Byzantine
through the bell tower. Both the dome and the
hexadecagonal outer cupola are a
feature inspired by the
tempietto shape of the St...
