1. Divide the number repeatedly by 2:
Keep track of each remainder.
Stop when you get a quotient that is equal to zero.
- division = quotient + remainder;
- 832 598 181 ÷ 2 = 416 299 090 + 1;
- 416 299 090 ÷ 2 = 208 149 545 + 0;
- 208 149 545 ÷ 2 = 104 074 772 + 1;
- 104 074 772 ÷ 2 = 52 037 386 + 0;
- 52 037 386 ÷ 2 = 26 018 693 + 0;
- 26 018 693 ÷ 2 = 13 009 346 + 1;
- 13 009 346 ÷ 2 = 6 504 673 + 0;
- 6 504 673 ÷ 2 = 3 252 336 + 1;
- 3 252 336 ÷ 2 = 1 626 168 + 0;
- 1 626 168 ÷ 2 = 813 084 + 0;
- 813 084 ÷ 2 = 406 542 + 0;
- 406 542 ÷ 2 = 203 271 + 0;
- 203 271 ÷ 2 = 101 635 + 1;
- 101 635 ÷ 2 = 50 817 + 1;
- 50 817 ÷ 2 = 25 408 + 1;
- 25 408 ÷ 2 = 12 704 + 0;
- 12 704 ÷ 2 = 6 352 + 0;
- 6 352 ÷ 2 = 3 176 + 0;
- 3 176 ÷ 2 = 1 588 + 0;
- 1 588 ÷ 2 = 794 + 0;
- 794 ÷ 2 = 397 + 0;
- 397 ÷ 2 = 198 + 1;
- 198 ÷ 2 = 99 + 0;
- 99 ÷ 2 = 49 + 1;
- 49 ÷ 2 = 24 + 1;
- 24 ÷ 2 = 12 + 0;
- 12 ÷ 2 = 6 + 0;
- 6 ÷ 2 = 3 + 0;
- 3 ÷ 2 = 1 + 1;
- 1 ÷ 2 = 0 + 1;
2. Construct the base 2 representation of the positive number:
Take all the remainders starting from the bottom of the list constructed above.
832 598 181(10) = 11 0001 1010 0000 0111 0000 1010 0101(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 30.
- A signed binary's bit length must be equal to a power of 2, as of:
- 21 = 2; 22 = 4; 23 = 8; 24 = 16; 25 = 32; 26 = 64; ...
- The first bit (the leftmost) indicates the sign:
- 0 = positive integer number, 1 = negative integer number
The least number that is:
1) a power of 2
2) and is larger than the actual length, 30,
3) so that the first bit (leftmost) could be zero
(we deal with a positive number at this moment)
=== is: 32.
4. Get the positive binary computer representation on 32 bits (4 Bytes):
If needed, add extra 0s in front (to the left) of the base 2 number, up to the required length, 32.
Decimal Number 832 598 181(10) converted to signed binary in one's complement representation: