Value type - ushort, uint, ulong (unsigned 16 bit, C# with Example

32 bit, 64 bit integers) 
// assigning an unsigned short to its minimum value 
ushort s = 0; 
// assigning an unsigned short to its maximum value 
ushort s = 65535; 
// assigning an unsigned int to its minimum value 
uint i = 0; 
// assigning an unsigned int to its maximum value 
uint i = 4294967295; 
 

// assigning an unsigned long to its minimum value (note the unsigned long postfix) 
ulong l = 0UL; 
// assigning an unsigned long to its maximum value (note the unsigned long postfix) 
ulong l = 18446744073709551615UL; 
It is also possible to make these types nullable, meaning that additionally to the usual values, null can be assigned, 
too. If a variable of a nullable type is not initialized, it will be null instead of 0. Nullable types are marked by adding a 
question mark (?) after the type. 
uint a; //This is now 0. 
uint? b; //This is now null.