110101002
There is basically one way to write hexadecimal numbers. Of course, the numbers represent information, and this information can be represented in may other ways; some of them are in binary (4 binary digits for each hexadecimal digit), in decimal, or each byte as as decimal number (as in the dotted decimal notation used for IP version 4 numbers).
0.
The number 200 written as a binary number is 11001000
-- The decimal system (base-10) uses 10 digits to write all numbers. -- The binary system (base-2) uses 2 digits to write all numbers.
10
212 (decimal) is 11010100 (binary)
There is basically one way to write hexadecimal numbers. Of course, the numbers represent information, and this information can be represented in may other ways; some of them are in binary (4 binary digits for each hexadecimal digit), in decimal, or each byte as as decimal number (as in the dotted decimal notation used for IP version 4 numbers).
In a simple way, write down the numbers from right to left: 1,2,4,8,16,32,64 and 128. Binary one is 000001. (write this above or below the other numbers I just gave you) The number two is 000010 in binary. Three is 000011. Four is 000100. Five is 000101. You should see the pattern. The Binary number corresponds to the placement of ones and zeros to 128 64 32 16 8 4 2 1.
0.
11001 16 + 8 + 1
The number 200 written as a binary number is 11001000
Decimal 28 is 11100 in binary
-- The decimal system (base-10) uses 10 digits to write all numbers. -- The binary system (base-2) uses 2 digits to write all numbers.
First let's write it as a sum of powers of two. This will make it easier to write as a binary number. 19=16+2+1 This can be written: 19=16*1+8*0+4*0+2*1+1*1 So the binary form is: 10011
1
10
10110