46489

Properties

Appears in sequences

• Primes whose digits are composite; primes having only {4, 6, 8, 9} as digits.at n=24A051416
• Primes with 29 as smallest positive primitive root.at n=8A061733
• Primes using only the composite digits (4, 6, 8, 9) and all of them.at n=0A157527
• Number of n X 2 0..4 arrays of sums of 2 X 2 subblocks of some (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order.at n=11A226988
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to either SmallGroup(2187,247)-#1;5 or SmallGroup(2187,247)-#1;9.at n=16A250242
• Primes of the form sigma(k) + product of divisors of k.at n=25A260108
• Primes p such that the maximal length of a nontrivial N(p)-Hensley sequence mod p is less than the value of A124882 for that prime, where N(p) is the least positive quadratic non-residue mod p.at n=19A261405
• Expansion of Sum_{i = p*q, p prime, q prime} x^i/(1 - x^i) / Product_{j>=1} (1 - x^j).at n=37A281612
• Primes p such that, if q is the next prime, p + q^2 is a prime times a power of 10.at n=42A352837
• Prime numbersat n=4805