29999

Appears in sequences

• Numbers having four 9's in base 10.at n=2A043528
• Smallest number whose sum of digits is n.at n=38A051885
• a(n) = 48*n^2 - 1.at n=25A065532
• Smallest composite number with digit sum n.at n=37A067524
• a(n) is the smallest composite number with the sum of digits = the n-th composite number.at n=24A073866
• a(n) = smallest k such that 2k has digit sum = n.at n=39A077491
• Near-repdigit semiprimes with 9 as repeated digit.at n=30A105990
• Smallest number whose sum of digits is 2n.at n=19A133296
• a(n) integers with digit sum a(n); a(n+1) is the smallest integer > a(n).at n=43A136317
• Minimum number k for which the digital sum of k*n is 2*n.at n=20A147822
• a(1)=0, a(n+1) is the smallest nonprime with sum of digits > sum of digits of a(n).at n=34A156673
• The smallest composite number larger than the n-th composite number, which has a sum of digits equal to the n-th composite number.at n=24A161551
• The smallest number larger than n with digital sum equal to n.at n=37A161561
• Lexicographically earliest injective sequence such that a(n) = A007953(a(a(n))), where A007953 = sum of digits (in base 10).at n=37A167152
• a(n) = 3*10^n - 1.at n=4A198698
• Smallest odd number with digit sum equal to n.at n=37A205960
• Least semiprime whose digital sum is n, or 0 if no such integer exists.at n=38A213653
• Numbers m having with m+1 no common digit in decimal representations.at n=35A226637
• Number of partitions p of n such that median(p) = multiplicity(max(p)).at n=47A240209
• The semiprimes which set new records for the sum of their decimal digits.at n=26A257652