-33 026(10) to a signed binary one's complement representation = ?
1. Start with the positive version of the number:
|-33 026| = 33 026
2. 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;
- 33 026 ÷ 2 = 16 513 + 0;
- 16 513 ÷ 2 = 8 256 + 1;
- 8 256 ÷ 2 = 4 128 + 0;
- 4 128 ÷ 2 = 2 064 + 0;
- 2 064 ÷ 2 = 1 032 + 0;
- 1 032 ÷ 2 = 516 + 0;
- 516 ÷ 2 = 258 + 0;
- 258 ÷ 2 = 129 + 0;
- 129 ÷ 2 = 64 + 1;
- 64 ÷ 2 = 32 + 0;
- 32 ÷ 2 = 16 + 0;
- 16 ÷ 2 = 8 + 0;
- 8 ÷ 2 = 4 + 0;
- 4 ÷ 2 = 2 + 0;
- 2 ÷ 2 = 1 + 0;
- 1 ÷ 2 = 0 + 1;
3. Construct the base 2 representation of the positive number:
Take all the remainders starting from the bottom of the list constructed above.
33 026(10) = 1000 0001 0000 0010(2)
4. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 16.
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; ...
First bit (the leftmost) indicates the sign,
1 = negative, 0 = positive.
The least number that is:
a power of 2
and is larger than the actual length, 16,
so that the first bit (leftmost) could be zero
(we deal with a positive number at this moment)
is: 32.
5. 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:
33 026(10) = 0000 0000 0000 0000 1000 0001 0000 0010
6. Get the negative integer number representation:
To get the negative integer number representation on 32 bits (4 Bytes),
signed binary one's complement,
replace all the bits on 0 with 1s
and all the bits set on 1 with 0s
(reverse the digits, flip the digits)
!(0000 0000 0000 0000 1000 0001 0000 0010) =
1111 1111 1111 1111 0111 1110 1111 1101
Number -33 026, a signed integer, converted from decimal system (base 10) to a signed binary one's complement representation:
-33 026(10) = 1111 1111 1111 1111 0111 1110 1111 1101
Spaces used to group digits: for binary, by 4; for decimal, by 3.
More operations of this kind:
Convert signed integer numbers from the decimal system (base ten) to signed binary one's complement representation