Signed: Integer -> Binary: 167 772 224 Convert the Integer Number to a Signed Binary. Converting and Writing the Base Ten Decimal System Signed Integer as Binary Code (Written in Base Two)
Signed integer number 167 772 224(10)
converted and written as a signed binary (base 2) = ?
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;
- 167 772 224 ÷ 2 = 83 886 112 + 0;
- 83 886 112 ÷ 2 = 41 943 056 + 0;
- 41 943 056 ÷ 2 = 20 971 528 + 0;
- 20 971 528 ÷ 2 = 10 485 764 + 0;
- 10 485 764 ÷ 2 = 5 242 882 + 0;
- 5 242 882 ÷ 2 = 2 621 441 + 0;
- 2 621 441 ÷ 2 = 1 310 720 + 1;
- 1 310 720 ÷ 2 = 655 360 + 0;
- 655 360 ÷ 2 = 327 680 + 0;
- 327 680 ÷ 2 = 163 840 + 0;
- 163 840 ÷ 2 = 81 920 + 0;
- 81 920 ÷ 2 = 40 960 + 0;
- 40 960 ÷ 2 = 20 480 + 0;
- 20 480 ÷ 2 = 10 240 + 0;
- 10 240 ÷ 2 = 5 120 + 0;
- 5 120 ÷ 2 = 2 560 + 0;
- 2 560 ÷ 2 = 1 280 + 0;
- 1 280 ÷ 2 = 640 + 0;
- 640 ÷ 2 = 320 + 0;
- 320 ÷ 2 = 160 + 0;
- 160 ÷ 2 = 80 + 0;
- 80 ÷ 2 = 40 + 0;
- 40 ÷ 2 = 20 + 0;
- 20 ÷ 2 = 10 + 0;
- 10 ÷ 2 = 5 + 0;
- 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.
167 772 224(10) = 1010 0000 0000 0000 0000 0100 0000(2)
3. Determine the signed binary number bit length:
The base 2 number's actual length, in bits: 28.
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) is reserved for 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, 28,
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 167 772 224(10), a signed integer number (with sign),
converted from decimal system (from base 10)
and written as a signed binary (in base 2):
167 772 224(10) = 0000 1010 0000 0000 0000 0000 0100 0000
The first bit (the leftmost) is reserved for the sign:
0 = positive integer number, 1 = negative integer number
Spaces were used to group digits: for binary, by 4, for decimal, by 3.
Convert signed integer numbers from the decimal system (base ten) to signed binary (written in base two)
How to convert a base ten signed integer number to signed binary:
1) Divide the positive version of the number repeatedly by 2, keeping track of each remainder. Stop when getting a quotient that is 0.
2) Construct the base two representation by taking the previously calculated remainders starting from the last remainder up to the first one.
3) Construct the positive binary computer representation so that the first bit is 0.
4) Only if the initial number is negative, change the first bit (the leftmost), from 0 to 1. The leftmost bit is reserved for the sign, 1 = negative, 0 = positive.