90011

Properties

Appears in sequences

• Primes expressible as the sum of (at least two) consecutive primes in at least 4 ways.at n=21A067380
• Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d = 2, 4 or 6) and forming d-pattern=[6,2,4]; short d-string notation of pattern = [624].at n=22A078853
• Smallest number not occurring earlier fitting the repeating pattern "11223344556677889900".at n=41A098781
• Primes of the form k^2 + 11.at n=20A138362
• a(1)=2; a(n)=smallest prime greater than the half-sum of all previous terms.at n=27A196375
• Primes having only {0, 1, 9} as digits.at n=33A199329
• Numbers n such that there are a, b with abs(sigma(a) - sigma(b)) = sigma(n) - n and a U b = n, where U is decimal concatenation.at n=27A239563
• Numbers n such that A = n - digitsum(n) is divisible by the largest power of 10 <= A.at n=40A242474
• a(n) is the smallest prime that is the sum of both 2n-1 and 2n+1 consecutive primes.at n=10A288340
• Primes that are the concatenation of a square and a prime that is the concatenation of two squares.at n=38A364359
• Prime numbersat n=8716