119911

Appears in sequences

• Composite numbers whose prime factors contain no digits other than 1 and 9.at n=35A036309
• Treated as strings, the concatenation c of the prime factors of n, in increasing order, is an initial segment of n. Equivalently, n begins with c.at n=11A069154
• Smallest multiple of n beginning and ending in n and with a digit sum that is divisible by n.at n=10A078213
• Visible factor numbers (VFNs): composite numbers k with the property that every prime factor of k can be found in the decimal expansion of k and every digit of k can be covered by a prime factor.at n=5A083359
• Subsequence of sequence A083359 in which every prime factor can be found in the number at least as often as it is factor of the number.at n=1A083361
• a(n) is the smallest number with n distinct prime factors whose decimal representation contains all its prime factors, taking multiplicity into account.at n=1A319022
• Conceited Numbers: Composite numbers that are a concatenation of their distinct prime factors with multiplicity in some order allowing overlap.at n=6A324257
• Subsequence of A324257 (Conceited Numbers) where every prime factor is visible in the number, not just each distinct prime factor.at n=1A324259
• Palindromes that are multiples of 11 and whose digit sum is also a multiple of 11.at n=16A346221
• Palindromes which are a concatenation of three palindromes, each of which has at least 2 digits.at n=9A368020