16400000

Appears in sequences

• Numbers n such that phi(n) is a proper substring of n.at n=23A066663
• Numbers n such that the digits of n end in phi(n).at n=24A067206
• Composite numbers n such that n - phi(n) is a power of 10.at n=15A248857
• Number of (n+1) X (7+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally.at n=16A253469