10110
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10110
00010110 = 22
An ancient method of converting decimal numbers to binary form is to halve the number until 1 is reached. When halving an odd number round down to the number below (13 halved = 61/2 round down to 6). If the number is even then record a 0, if the number is odd then record a 1. 22 ................is even .......0 22 ÷ 2 = 11..is odd..........1 11 ÷ 2 = 5....is odd..........1 5 ÷ 2 = 2......is even........0 2 ÷ 2 = 1......is odd..........1 The binary equivalent of 22 is therefore 10110
The binary representations of the decimal numbers from 20 to 30 are as follows: 20: 10100 21: 10101 22: 10110 23: 10111 24: 11000 25: 11001 26: 11010 27: 11011 28: 11100 29: 11101 30: 11110 These binary numbers represent their respective decimal values.
It is a number system that uses the digits 0 and 1 only. So 0 is written 0 and 1 is 1, but two in base 10 is written 10 in binary. The first digit is 20 or 1, the next is 21 or 2, the next digits is 22 This keeps going and any number can be written in binary or base two.