Because of the way binary numbers are defined. Well, I didn't check it, but you can calculate the following: multiply the first digit to the LEFT of the decimal point by 1, the next by 2, the next by 4, etc.; for the decimals: multiply the first digit to the RIGHT of the decimal point by 1/2, the second by 1/4, etc.; and add everything together.
Converted from binary to decimal, 100000 is equal to 32.
In binary form it is 1010001.
The first number (01001101) is equal to the decimal number 77. The second number (00100010) is equal to the decimal number 34. If you add the two together in decimal, you get 111. Expressed as a binary number, 111 is equal to 01101111.
The binary number 1000011 is equal to the decimal number 67. See the related link, 'Binary Numbers' below this answer.
The binary number 10101 represents 21.
1001 in binary is equal to 9 in decimal.
Converted from binary to decimal, 100000 is equal to 32.
Converted from decimal to binary, 123789 is equal to 11110001110001101.
In binary form it is 1010001.
The first number (01001101) is equal to the decimal number 77. The second number (00100010) is equal to the decimal number 34. If you add the two together in decimal, you get 111. Expressed as a binary number, 111 is equal to 01101111.
The binary number 1000011 is equal to the decimal number 67. See the related link, 'Binary Numbers' below this answer.
The binary number 10101 represents 21.
11111100 = 252
8
1024 = 10000000000
11010110 = 214
13