Today is binary day 111111 Posted on November 11, 2011 by David Reply Or, in hexadecimal 3F, decimal 63 and octal 77. Like or Share this:TweetMore Click to share on Reddit (Opens in new window) Reddit Share on TumblrPocket Click to email a link to a friend (Opens in new window) Email Click to print (Opens in new window) Print Like this:Like Loading...