73837

Appears in sequences

• Concatenation of n in base 2 up to base 10 and n in base 10 down to base 2 is prime, all numbers are interpreted as decimals.at n=15A054258
• Beginning with 2, smallest palindrome >= the previous term such that every concatenation is a prime.at n=16A088093
• Bases b where exactly ten primes p with p < b exist such that p is a base-b Wieferich prime.at n=1A325886