109999
domain: N
Appears in sequences
- a(n) is that n-digit number m which minimizes m/(sum of digits of m); in case of a tie pick the smallest.at n=5A066007
- Number of palindromes of length <= n.at n=8A070199
- 10 followed by 2n 9's.at n=2A133383
- a(n) = 11*10^n - 1.at n=4A198700
- Sequence of pairwise relatively prime numbers of class P_7 (see comment in A275246).at n=33A275252
- Composite numbers k = concat(x,LSD(k)) such that k' = x', where k' is the arithmetic derivative of k.at n=1A293478
- Composite numbers k = concat(x,LSD(k)) such that the sum of the aliquot parts of k is equal to the sum of the aliquot parts of x.at n=2A293480