It is not:

3.14159
Decimal: The first 50 decimal digits are 3.14159265358979323846264338327950288419716939937510... A000796. Binary: The base 2 approximation to 48 digits is 11.001001000011111101101010100010001000010110100011... Hexadecimal: The base 16 approximation to 20 digits is 3.243F6A8885A308D31319...

It is instead this:

3.14460

And here's the proof: http://cur.lv/s11b1