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;
- 14 122 988 ÷ 2 = 7 061 494 + 0;
- 7 061 494 ÷ 2 = 3 530 747 + 0;
- 3 530 747 ÷ 2 = 1 765 373 + 1;
- 1 765 373 ÷ 2 = 882 686 + 1;
- 882 686 ÷ 2 = 441 343 + 0;
- 441 343 ÷ 2 = 220 671 + 1;
- 220 671 ÷ 2 = 110 335 + 1;
- 110 335 ÷ 2 = 55 167 + 1;
- 55 167 ÷ 2 = 27 583 + 1;
- 27 583 ÷ 2 = 13 791 + 1;
- 13 791 ÷ 2 = 6 895 + 1;
- 6 895 ÷ 2 = 3 447 + 1;
- 3 447 ÷ 2 = 1 723 + 1;
- 1 723 ÷ 2 = 861 + 1;
- 861 ÷ 2 = 430 + 1;
- 430 ÷ 2 = 215 + 0;
- 215 ÷ 2 = 107 + 1;
- 107 ÷ 2 = 53 + 1;
- 53 ÷ 2 = 26 + 1;
- 26 ÷ 2 = 13 + 0;
- 13 ÷ 2 = 6 + 1;
- 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.
14 122 988(10) = 1101 0111 0111 1111 1110 1100(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 24.
- 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, 24,
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 14 122 988(10) converted to signed binary in one's complement representation: