22229

Properties

Appears in sequences

• Primes that contain digits 2 and 9 only.at n=6A020460
• Smallest n-digit prime containing only digits 2 and 9, or 0 if no such prime exists.at n=4A036939
• Smallest prime containing exactly n 2's.at n=4A037057
• Numbers having four 2's in base 10.at n=16A043500
• Primes of the form bbbbba... where a and b are digits.at n=52A062353
• Smallest prime larger than square of n-th prime.at n=34A062772
• Smallest prime beginning with exactly n 2's.at n=4A065585
• Smallest prime starting with at least n 2s.at n=4A068103
• Primes with either no internal digits or all internal digits are 2.at n=52A069677
• Lunar fourth powers: n*n*n*n, where * is lunar multiplication.at n=29A087051
• a(n) = nextprime(A090117(n)), the smallest prime following squares listed in A090117 and also the distance of a(n) from the preceding prime is 2*n.at n=17A090119
• Primes of the form identical digits followed by a 9.at n=8A090148
• Next prime associated with A091628.at n=3A091631
• Primes of the form 20*R_k + 9, where R_k is the repunit (A002275) of length k.at n=2A093401
• a(n) is the least prime following A002276(n) repdigits.at n=5A099656
• Smallest prime p with at least two non-overlapping occurrences of n in decimal representation of p.at n=21A103611
• Near-repdigit primes with at least two 2's as the repeated digit.at n=4A105982
• a(n) = smallest prime number p_k such that 1/p_n + 1/p_{n+1} + ... + 1/p_k > 1.at n=11A119494
• Numbers k such that k and k^2 use only the digits 1, 2, 4, 8 and 9.at n=27A137000
• Prime numbers p such that p^3 - (p+1)^2 and p^3 + (p+1)^2 are both primes.at n=24A137476