8999999

Appears in sequences

• a(n) is the smallest composite number with the sum of digits = the n-th composite number.at n=42A073866
• Maximal difference between two n-digit numbers.at n=6A109002
• Smallest number whose sum of digits is 2n.at n=31A133296
• Numbers k such that k and k+1 are both nonprime-powers whose all distinct prime divisors are consecutive primes (A066312).at n=26A346910