71 (the 20th prime)

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Next prime73
Previous prime67
Octal(107)8
Hexadecimal(47)16
Prime gap2
8th Twin prime (the small number)The big number is 73 .
11th Prime of the Form 4n+3 
5th Emirp (reversible prime) 
6th Euler prime number 
11th Right-truncatable prime 
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