340510170

Appears in sequences

• Triangle read by rows in which row n contains first n numbers with exactly n distinct prime factors.at n=39A048692
• Smallest number with n prime divisors such that the sum of the prime divisors is also a divisor, or 0 if no such number exists.at n=8A086487
• a(n) is the least k with n distinct prime factors such that the sum of its prime factors (counting multiplicity) divides k, or 0 if no such k exists. First member of A036844 with n distinct prime factors.at n=8A104466
• Products of 9 distinct primes.at n=3A115343
• Squarefree kernels of orders of sporadic simple groups.at n=23A174848
• Irregular triangle read by rows: T(m, k) is the list of squarefree numbers A002110(m) < t < 2*A002110(m) such that A001221(t) = m.at n=32A288813
• Numbers k with a record number of divisors d < sqrt(k) such that d + k/d is prime.at n=24A331665
• Least k such that Sum_{i=0..n} k^i / i! is a positive integer.at n=29A332734
• Numbers k such that omega(k) = 9.at n=3A348073
• Numbers of the form A002110(k)/prime(i); i = 2..k-1; sorted.at n=29A372666