41037

Appears in sequences

• Becomes prime after exactly 9 iterations of f(x) = sum of prime factors of x.at n=0A047828
• Least number which becomes prime after exactly n iterations of f(x) = sum of prime factors of x.at n=9A047830
• Numbers k such that 10^999 + k is a (titanic) prime.at n=21A074282
• Number of n-digit 10th powers.at n=52A216654
• Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.at n=9A252301