42169

Properties

Appears in sequences

• Smallest prime dividing the composite near-repdigit number 133...33 consisting of a 1 followed by n 3's, where n=A105427.at n=20A105428
• K-bit primes p such that p-2^i and p+2^i are composite for 0<=i<=K-1.at n=29A153352
• Depression-type primes with five digits; from left to right digits decrease to and increase from the central digit.at n=32A157083
• Primes of the form x^2 + 5*y^2, where x and y=x+1 are consecutive natural numbers.at n=22A176608
• Number of integer partitions of n such that every pair of distinct parts has a different quotient.at n=45A325853
• Numerators of coefficients in a series for the first Stieltjes constant gamma_1.at n=3A332536
• Primes p such that, if q is the next prime, p + q^2 is a prime times a power of 10.at n=36A352837
• Prime numbersat n=4407