2899999

Appears in sequences

• Least integer having a larger digital sum than the previous term and such that 10^(n-1) + a(n) is a prime.at n=27A199190
• The semiprimes which set new records for the sum of their decimal digits.at n=41A257652
• a(n) is the smallest positive k such that the digit sums of k and k + 1 are both divisible by n, or -1 if no such pair exists.at n=10A378119