The answer depends on what you wish to compare and contrast it with.
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The numbers used in the binary number system are 1 and 0
Rational number can be divided into more that the number 2. Irrational number are numbers that can only be divided evenly with the number 2.
Memory dump which are in binary numbers would have many numbers of 0s and 1s. working with these numbers would be very difficult. Hence two number system hexadecimal and octal number system is used because these numbers are inter convertible with binary numbers by the concept of bits.
It is a very large number which would normally be expressed in scientific notation.
It is unlikely that anyone else would know when you are doing that!