converting doubles like this: 4.31262473529E+19 to full number (or work with E+)

[ultrus]

Hello,

I have large numbers being stored in a database as doubles, looking like this:

 

4.31262473528E+19

 

How do I convert these into an actual number, or work with these as is in PHP? I remember playing with these in high school... but not in php.

 

Thanks much.