49789

Properties

Appears in sequences

• Sum of composite numbers between prime p and nextprime(p) is palindromic.at n=35A054266
• Sum of composite numbers between prime p and nextprime(p) is palindromic with restriction 'p + 1 <> sum'.at n=23A054267
• Prime number spiral (clockwise, Northeast spoke).at n=36A054553
• Numbers n such that the number formed by the digits of 2n sorted in descending order is equal to the sum of the divisors of n after the digits of each divisor have been sorted in descending order (all zeros dropped).at n=9A083389
• Primes with digit sum = 37.at n=5A106771
• Primes of the form a^a + b^b + c^c + d^d.at n=11A133664
• Numbers k such that A234575(k,s) = s^2 where s = A007953(k).at n=38A358034
• G.f. A(x) satisfies 0 = Sum_{n=-oo..+oo} (-x)^n * (A(x) - (-x)^n)^(3*n+1).at n=6A380067
• Prime numbersat n=5113