Numeric Value: 12

The folowing table expresses '12' in various number bases. 'DR_x' shows the result of 'digit reducing' resulting in an X-digit long number.

Base	DR₄	DR₃	DR₂	DR₁
2	1100		10	1
3		110		2
4			30	3
5			22	4
6			20	2
7			15	6
8			14	5
9			13	4
10			12	3
11			11	2
12			10	1
13				C
14				C
15				C
16				C

Math World

Factors: 2² * 3

12 is the number of edges in a Cube/Hexahedron.

12 is the number of edges in a Octahedron.

12 is the number of faces in a Dodecahedron.

12 is the number of vertices in a Icosahedron.

A 'Dodecagon' is a 'regular polygon' with 12 sides.

12 is the atomic weight of Magnesium (Mg).