A Happy Binary Day – 011110

January 11, 2010

A happy binary day to all. Namely “30” day. Further, binary aside, the short form of the date is also a palindrome!

Just how special are such days? There are only 2^4 binary dates (16) in any given century (although a calendar format would allow for 2^6, the lack of any month or date that is “00” reduces it down). After today, there are only six such dates remaining this century.

Furthermore, there are only THREE binary palindromes PER CENTURY – today included! (the others being 10/11/01 and 11/11/11 (which will be quite a party indeed – Veteran’s day to boot (11th hour of the 11th day of the 11th month… enough!!) )

What a fun year this is for those who love calendar mathematics!


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