Mikio Braun
@mikiobraun
All you possibly need to know about 2013 maanumberaday.blogspot.de/2012/12/2013.h…
2013
2013 = 3 x 11 x 61. 2013 is a permutation of the digits 0, 1, 2, and 3 ( A203569 ) 2013 , 2014, and 2015 have the same number of diviso...
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