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;
- 6 152 355 536 ÷ 2 = 3 076 177 768 + 0;
- 3 076 177 768 ÷ 2 = 1 538 088 884 + 0;
- 1 538 088 884 ÷ 2 = 769 044 442 + 0;
- 769 044 442 ÷ 2 = 384 522 221 + 0;
- 384 522 221 ÷ 2 = 192 261 110 + 1;
- 192 261 110 ÷ 2 = 96 130 555 + 0;
- 96 130 555 ÷ 2 = 48 065 277 + 1;
- 48 065 277 ÷ 2 = 24 032 638 + 1;
- 24 032 638 ÷ 2 = 12 016 319 + 0;
- 12 016 319 ÷ 2 = 6 008 159 + 1;
- 6 008 159 ÷ 2 = 3 004 079 + 1;
- 3 004 079 ÷ 2 = 1 502 039 + 1;
- 1 502 039 ÷ 2 = 751 019 + 1;
- 751 019 ÷ 2 = 375 509 + 1;
- 375 509 ÷ 2 = 187 754 + 1;
- 187 754 ÷ 2 = 93 877 + 0;
- 93 877 ÷ 2 = 46 938 + 1;
- 46 938 ÷ 2 = 23 469 + 0;
- 23 469 ÷ 2 = 11 734 + 1;
- 11 734 ÷ 2 = 5 867 + 0;
- 5 867 ÷ 2 = 2 933 + 1;
- 2 933 ÷ 2 = 1 466 + 1;
- 1 466 ÷ 2 = 733 + 0;
- 733 ÷ 2 = 366 + 1;
- 366 ÷ 2 = 183 + 0;
- 183 ÷ 2 = 91 + 1;
- 91 ÷ 2 = 45 + 1;
- 45 ÷ 2 = 22 + 1;
- 22 ÷ 2 = 11 + 0;
- 11 ÷ 2 = 5 + 1;
- 5 ÷ 2 = 2 + 1;
- 2 ÷ 2 = 1 + 0;
- 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.
6 152 355 536(10) = 1 0110 1110 1011 0101 0111 1110 1101 0000(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 33.
- 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, 33,
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 6 152 355 536(10) converted to signed binary in one's complement representation: