33275

Appears in sequences

• Numbers of the form 5^i * 11^j.at n=19A003598
• Composite numbers whose prime factors contain no digits other than 1 and 5.at n=28A036305
• Numbers k that divide 3^k + 2^k.at n=17A045576
• Numbers k that divide 7^k + 3^k.at n=32A045586
• Numbers k that divide 6^k + 4^k.at n=41A045591
• Numbers k such that k | 10^k + 9^k + 8^k + 7^k + 6^k + 5^k + 4^k + 3^k + 2^k + 1^k.at n=25A056739
• Numbers k such that A074037(k) = A002034(k).at n=30A074055
• Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.at n=9A114131
• Strong Achilles numbers: Achilles numbers m such that phi(m) is also an Achilles number, where phi(m) denotes Euler's totient function of m.at n=17A194085
• Triangle read by rows: coefficients of harmonic-geometric polynomials.at n=38A222057
• Triangle read by rows: coefficients of harmonic-geometric polynomials.at n=48A222060
• Numbers k such that between k and the next prime there are gpf(k) numbers, where gpf(k) denotes the largest prime factor of k.at n=26A235425
• Achilles numbers which are coprime to the sum of their divisors.at n=40A248022
• Numbers n such that A083722(n) > 1 and A083722(n) occurs earlier in A083722.at n=23A293894
• Twice the area of triangle with coordinates (Fn, Fn+k), (Fn+2k, Fn+3k) and (Fn+4k, Fn+5k), where Fn is the n-th Fibonacci number A000045.at n=4A334995
• Numbers that are the product of distinct primes with prime subscripts raised to prime powers.at n=44A346068
• Numbers > 1 that are not a prime power and whose prime indices and exponents are all themselves prime numbers.at n=22A352518
• Least Matula-Goebel number of a rooted tree with n internal (non-leaf) nodes.at n=14A358554
• Odd powerful numbers (A062739) k such that the next powerful number after k is also odd.at n=33A363190
• Achilles numbers that are deficient.at n=41A379164