570375

Appears in sequences

• a(n) is least k such that k and 9k are anagrams in base n (written in base 10).at n=16A023101
• Irregular triangle of odd primitive abundant numbers (A006038) in which row n has numbers with n distinct prime factors.at n=7A188439
• Least odd primitive abundant number having its prime signature.at n=28A316116
• Odd numbers k such that rad(k) divides sigma(k).at n=31A336554
• Primitive nondeficient numbers sorted by largest prime factor then by increasing size. Irregular triangle T(n, k), n >= 2, k >= 1, read by rows, row n listing those with largest prime factor = prime(n).at n=31A338133
• First differences of cubes of triangular numbers.at n=15A357178
• Primitive abundant numbers (A071395) that are powerful numbers (A001694).at n=1A363175
• Primitive abundant numbers (A091191) that are powerful numbers (A001694).at n=3A363176
• Integers k such that k = Sum k/(p_i + j), where p_i are the prime factors of k (with multiplicity). Case j = 3.at n=21A380924