This number is a prime.
The smallest emirp that contains all of the straight digits
The smallest 4-digit prime equal to the number of monosubstituted alkanes C(n-1)H(2n-1)-X with n-1 carbon atoms that are not stereoisomers. [Russo]
The first emirp p equal to the sum of the n first strong
primes (n=17). Note that n and p are strong emirps. [Loungrides]
The smallest super-3 prime (emirp) p, i.e., a prime p such
that 3p^3 contains 3 consecutive 3's in its decimal
The diameter of Pluto in miles.
(There are 2 curios for this number that have not yet been approved by an editor.)
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