i need to set an integer to start from 001 instead of only 1

int iNumber = 001;
NSLog(@"%d",iNumber); // this is logging 1 instead of 001

is there a possible way to make it 001 ?

[UPDATED]

i need this because i`m creating an NSMutableArray from NSUserDefaults, after that I'm sorting the array using NSSortDescriptor. the problem is because i can't set the int to start from 001 the array i sorted like this 0, 10, 11, 12, 1, 2, 3, 4, 5, 6, 7, 8, 9.

More Code explained

NSString *name = @"Name";
NSUserDefaults *MainArray = [NSUserDefaults standardUserDefaults];
NSString *Temp = [NSString stringWithFormat:@"%@%d", name,MainNumber];
[MainArray setObject:@"test" forKey:Temp];
[MainArray synchronize];
NSLog(@"%@",Temp);
MainNumber++;

the above code will save it like this : Name1,Name2,Name3....

i need it to be Name001, Name002, Name003 .......

thank you in advance :)