Regarding data conversions

Hi,

I have a numeric value eg: 123456789123456.1234567

I am getting it into my program using BAPI so it is converted into float and i am getting it as 1.234567891E+14

I want to convert it to char and i want to display it as

123456789123456.1234567

Is there any FM available for this.

Regards,

Ravi