1.9E3779B9486E5
What is 1.6180339887 in hexadecimal?

I suppose 0.6180339887 is 0.9E3779B9486E5 but am not sure .
Can you tell me a program to convert not round numbers ?

I suppose 0.6180339887 is 0.9E3779B9486E5 but am not sure .
Can you tell me a program to convert not round numbers ?
There are probably a lot of them out there. You could always use Wolfram|Alpha
Can anybody give me answer to this question ?