2

2 infix.

In translation software written by hackers, infix 2 often represents the syllable to with the connotation `translate to': as in dvi2ps (DVI to PostScript), int2string (integer to string), and texi2roff (Texinfo to [nt]roff). Several versions of a joke have floated around the internet in which some idiot programmer fixes the Y2K bug by changing all the Y's in something to K's, as in Januark, Februark, etc.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.

2 is the Arabic numeral representation of two objects in every mathematical base except binary (base 2) where it is represented by 10.

2 is represented by II in Roman numerals.

2 is the first even number and consequently what even numbers are exactly divisible by in order for them to be even.

2 is the only even prime number.

2 is in the Fibonacci sequence.

2 + 2 = 2 × 2