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With that big old '5' in there, this can't be a binary number. A binary number is written with only 2 symbols. They're usually represented as '0' and '1', but they can be any two different marks. The number in the question has 3 different marks.
The Arabic alphabet has 28 consonants (29 if you include Hamza). There are also numerous "accent" marks that are sometimes included to indicate vowels and other information.
The word 'number' comes from Latin word ' numerus' meaning a quatityt. Various marks on bones/wood etc., are thought to be 'tally marks' from 40,000 years ago. Our modern number symbols of 1,2,3,4,5,6,7,8,9, are Arabic in origin.
Arrow Dynamics ended in 2002.