Friday March 14th is Pi Day and the real celebration is at 1:59:26 p.m.
At that time, the numbers will be 31415926 and of course Pi starts off as 3.1415926.
If that's not geeky enough for you, here is how PI starts off so you can memorize and amaze/annoy your fellow geeky friends.
3.1415926535897932384626433832795028
841971693993751058209749
4459230781640628620899862
80348253421170679 8214
808651328230664709
38446095505822317253
594081284811174502841
0270193852110555964462294
895493038196 442
8810975665933446128475
6482337867831652712019091...
continued here
Lots more good Pi info too