did you know: 73 is considered the perfect number 'cos of all these factors

did you know: 73 is considered the perfect number 'cos of all these factors
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73 is the 21st prime number. Its mirror 37 is the 12th. Its prime number position of 21 is the result of 7x3. In binary, 73 is a palindrome, 1001001 which backwards is 1001001.