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;
- 110 011 000 158 ÷ 2 = 55 005 500 079 + 0;
- 55 005 500 079 ÷ 2 = 27 502 750 039 + 1;
- 27 502 750 039 ÷ 2 = 13 751 375 019 + 1;
- 13 751 375 019 ÷ 2 = 6 875 687 509 + 1;
- 6 875 687 509 ÷ 2 = 3 437 843 754 + 1;
- 3 437 843 754 ÷ 2 = 1 718 921 877 + 0;
- 1 718 921 877 ÷ 2 = 859 460 938 + 1;
- 859 460 938 ÷ 2 = 429 730 469 + 0;
- 429 730 469 ÷ 2 = 214 865 234 + 1;
- 214 865 234 ÷ 2 = 107 432 617 + 0;
- 107 432 617 ÷ 2 = 53 716 308 + 1;
- 53 716 308 ÷ 2 = 26 858 154 + 0;
- 26 858 154 ÷ 2 = 13 429 077 + 0;
- 13 429 077 ÷ 2 = 6 714 538 + 1;
- 6 714 538 ÷ 2 = 3 357 269 + 0;
- 3 357 269 ÷ 2 = 1 678 634 + 1;
- 1 678 634 ÷ 2 = 839 317 + 0;
- 839 317 ÷ 2 = 419 658 + 1;
- 419 658 ÷ 2 = 209 829 + 0;
- 209 829 ÷ 2 = 104 914 + 1;
- 104 914 ÷ 2 = 52 457 + 0;
- 52 457 ÷ 2 = 26 228 + 1;
- 26 228 ÷ 2 = 13 114 + 0;
- 13 114 ÷ 2 = 6 557 + 0;
- 6 557 ÷ 2 = 3 278 + 1;
- 3 278 ÷ 2 = 1 639 + 0;
- 1 639 ÷ 2 = 819 + 1;
- 819 ÷ 2 = 409 + 1;
- 409 ÷ 2 = 204 + 1;
- 204 ÷ 2 = 102 + 0;
- 102 ÷ 2 = 51 + 0;
- 51 ÷ 2 = 25 + 1;
- 25 ÷ 2 = 12 + 1;
- 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.
110 011 000 158(10) = 1 1001 1001 1101 0010 1010 1010 0101 0101 1110(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 37.
- 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, 37,
3) so that the first bit (leftmost) could be zero
(we deal with a positive number at this moment)
=== is: 64.
4. Get the positive binary computer representation on 64 bits (8 Bytes):
If needed, add extra 0s in front (to the left) of the base 2 number, up to the required length, 64.
Decimal Number 110 011 000 158(10) converted to signed binary in two's complement representation:
Spaces were used to group digits: for binary, by 4, for decimal, by 3.