270131

Properties

Appears in sequences

• Powers of 2 written backwards.at n=17A004094
• Powers of 2 written backwards and sorted.at n=17A034906
• Smallest prime whose reversal is an n-th power.at n=16A059004
• Sequence of prime numbers whose reverse is a nontrivial prime power (A025475).at n=24A067194
• Primes obtained if 2^j for some suitable j is written backward.at n=5A101896
• a(n) = A020639(A004094(n)).at n=17A102384
• Primes in A004094.at n=5A102385
• a(n) is the least number such that bigomega(a(n)) = bigomega(R(a(n)))/n, where R(n) is the digit reverse of n and bigomega(n) is the number of prime divisors of n counted with multiplicity.at n=16A284496
• Prime numbersat n=23652