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;
- 1 100 000 110 010 096 ÷ 2 = 550 000 055 005 048 + 0;
- 550 000 055 005 048 ÷ 2 = 275 000 027 502 524 + 0;
- 275 000 027 502 524 ÷ 2 = 137 500 013 751 262 + 0;
- 137 500 013 751 262 ÷ 2 = 68 750 006 875 631 + 0;
- 68 750 006 875 631 ÷ 2 = 34 375 003 437 815 + 1;
- 34 375 003 437 815 ÷ 2 = 17 187 501 718 907 + 1;
- 17 187 501 718 907 ÷ 2 = 8 593 750 859 453 + 1;
- 8 593 750 859 453 ÷ 2 = 4 296 875 429 726 + 1;
- 4 296 875 429 726 ÷ 2 = 2 148 437 714 863 + 0;
- 2 148 437 714 863 ÷ 2 = 1 074 218 857 431 + 1;
- 1 074 218 857 431 ÷ 2 = 537 109 428 715 + 1;
- 537 109 428 715 ÷ 2 = 268 554 714 357 + 1;
- 268 554 714 357 ÷ 2 = 134 277 357 178 + 1;
- 134 277 357 178 ÷ 2 = 67 138 678 589 + 0;
- 67 138 678 589 ÷ 2 = 33 569 339 294 + 1;
- 33 569 339 294 ÷ 2 = 16 784 669 647 + 0;
- 16 784 669 647 ÷ 2 = 8 392 334 823 + 1;
- 8 392 334 823 ÷ 2 = 4 196 167 411 + 1;
- 4 196 167 411 ÷ 2 = 2 098 083 705 + 1;
- 2 098 083 705 ÷ 2 = 1 049 041 852 + 1;
- 1 049 041 852 ÷ 2 = 524 520 926 + 0;
- 524 520 926 ÷ 2 = 262 260 463 + 0;
- 262 260 463 ÷ 2 = 131 130 231 + 1;
- 131 130 231 ÷ 2 = 65 565 115 + 1;
- 65 565 115 ÷ 2 = 32 782 557 + 1;
- 32 782 557 ÷ 2 = 16 391 278 + 1;
- 16 391 278 ÷ 2 = 8 195 639 + 0;
- 8 195 639 ÷ 2 = 4 097 819 + 1;
- 4 097 819 ÷ 2 = 2 048 909 + 1;
- 2 048 909 ÷ 2 = 1 024 454 + 1;
- 1 024 454 ÷ 2 = 512 227 + 0;
- 512 227 ÷ 2 = 256 113 + 1;
- 256 113 ÷ 2 = 128 056 + 1;
- 128 056 ÷ 2 = 64 028 + 0;
- 64 028 ÷ 2 = 32 014 + 0;
- 32 014 ÷ 2 = 16 007 + 0;
- 16 007 ÷ 2 = 8 003 + 1;
- 8 003 ÷ 2 = 4 001 + 1;
- 4 001 ÷ 2 = 2 000 + 1;
- 2 000 ÷ 2 = 1 000 + 0;
- 1 000 ÷ 2 = 500 + 0;
- 500 ÷ 2 = 250 + 0;
- 250 ÷ 2 = 125 + 0;
- 125 ÷ 2 = 62 + 1;
- 62 ÷ 2 = 31 + 0;
- 31 ÷ 2 = 15 + 1;
- 15 ÷ 2 = 7 + 1;
- 7 ÷ 2 = 3 + 1;
- 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.
1 100 000 110 010 096(10) = 11 1110 1000 0111 0001 1011 1011 1100 1111 0101 1110 1111 0000(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 50.
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, 50,
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.
Number 1 100 000 110 010 096(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:
1 100 000 110 010 096(10) = 0000 0000 0000 0011 1110 1000 0111 0001 1011 1011 1100 1111 0101 1110 1111 0000
Spaces were used to group digits: for binary, by 4, for decimal, by 3.