1. Divide the number repeatedly by 2:
Keep track of each remainder.
We stop when we get a quotient that is equal to zero.
- division = quotient + remainder;
- 1 739 024 ÷ 2 = 869 512 + 0;
- 869 512 ÷ 2 = 434 756 + 0;
- 434 756 ÷ 2 = 217 378 + 0;
- 217 378 ÷ 2 = 108 689 + 0;
- 108 689 ÷ 2 = 54 344 + 1;
- 54 344 ÷ 2 = 27 172 + 0;
- 27 172 ÷ 2 = 13 586 + 0;
- 13 586 ÷ 2 = 6 793 + 0;
- 6 793 ÷ 2 = 3 396 + 1;
- 3 396 ÷ 2 = 1 698 + 0;
- 1 698 ÷ 2 = 849 + 0;
- 849 ÷ 2 = 424 + 1;
- 424 ÷ 2 = 212 + 0;
- 212 ÷ 2 = 106 + 0;
- 106 ÷ 2 = 53 + 0;
- 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.
1 739 024(10) = 1 1010 1000 1001 0001 0000(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 21.
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, 21,
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.
Number 1 739 024(10), a signed integer number (with sign), converted from decimal system (from base 10) and written as a signed binary in two's complement representation:
1 739 024(10) = 0000 0000 0001 1010 1000 1001 0001 0000
Spaces were used to group digits: for binary, by 4, for decimal, by 3.