Integer type

Hello.

It seems that, in Navision, variables with int type range from 2^-31+1 to 2^31-1. This means that there are exactly 2^32-1 differente possible values. I'd like to use a variable with exactly 2^32 different possible values so that I can build an array of 32 ints to write a number with up to 1024 bits and then perform some math calculation over it, using appropriate functions created for the effect.

Question: Is there any way to allow Navision to consider an int type ranging from -2^31 to 2^31-1 or from -2^31-1 to 2^31 or even (unsigned type) from 0 to 2^32-1?

(note: the same question is valid for biginteger type with 64 bits)

Thanks in advance for any answer
Regards