117123

Appears in sequences

• Lucky numbers that are decimal concatenations of n with n + 6.at n=14A032656
• Numbers k such that k and k^2 use only the digits 1, 2, 3, 7 and 9.at n=21A136983
• Number of (w,x,y,z) with all terms in {1,...,n} and w*x+y*z<=n^2.at n=19A212150
• Smallest sets of 6 consecutive deficient numbers in arithmetic progression. The initial deficient number is listed.at n=22A231628
• Numbers k such that 4*10^k + 79 is prime.at n=27A281645