What Means ? (I'm Brazillian)

What is the rest of it? 

5E+01    most likely means    5*10^1   =   50

E+01 means moving the decimal point one digit to the right, E+00 means leaving the decimal point where it is, and E–01 means moving the decimal point one digit to the left. Example: 1.00E+01 is 10, 1.33E+00 stays at 1.33, and 1.33E–01 becomes 0.133.