Today’s date (7/28/14) is (numerically) special – for several reasons:
1. Each year, July 28 (7/28) is the last day of the year year where the Day # (28, in this case) is four times the Month # (7, in this case). (There are only 7 of those each year! *)
2. Today (7/28/14) is the last day this year where all three numerals (month, day, and year) are each multiples of 7. There are/were only FOUR of those this year* (and there haven’t been any others since ’07!), and only TWO of those where the month/day/year are all different, as well !!*
* Can you name all the dates in question?
Bonus Tidbit:
28 happens to be what is called a perfect number. The factors of 28, not counting itself (1,2,4,7,14) all add up to 28. This is a rare phenomenon (hence the name ‘perfect’ :-)), and there were only four such numbers* known to the ancient Greeks. Even now, there are less than 50 of these numbers that are known – most of them VERY big!
* (Added on 12/29/14) These four were/are 6, 28, 496, and 8128.