81216

Appears in sequences

• Positive numbers n such that n is a multiple of (product of digits of n) * (sum of digits of n).at n=20A049102
• Numbers k such that k divided by ((sum of digits of k) multiplied by (product of digits of k)) is prime.at n=5A066042
• Records in A007374.at n=20A105207
• Numbers with prime factorization pq^3r^6.at n=19A190467
• The greedy sequence of real numbers at least 1 that do not contain any 3-term geometric progressions with integer ratio.at n=38A235054
• a(n) is the number of 5 element sets of distinct integer-sided trapezoids whose base angles are 60 degrees that fill an equilateral triangular grid of side n units formed by directly binary space partitioning 3-trapezoid sets without forming 4-trapezoid sets.at n=52A391203