1001 in binary is equal to 9 in decimal.
1111
010 011 111
When you write the decimal number '7' in Base-2 (binary), you write '0111'.
The number 14 in binary is 1110
The number 21 in binary is 10101
The binary number 10101 represents 21.
In binary form it is 1010001.
The binary number 1000011 is equal to the decimal number 67. See the related link, 'Binary Numbers' below this answer.
It is 894.
63.
13
11
As an 8 digit binary number it is equal to 166.
1001 in binary is equal to 9 in decimal.
Converted from binary to decimal, 100000 is equal to 32.
Binary number 1110101 equates to octal number 165.