Fatto matematico: 4006 is _{14}C_{4} + _{14}C_{0} + _{14}C_{0} + _{14}C_{6}.
Trivia: 4006 is a boring number.
Data storica: December 19th is the day in 1964 that the South Vietnamese military junta of Nguyen Khanh dissolved the High National Council and arrested some of the members.