742,900

Number
$742 \, 900$ (seven hundred and forty-two thousand, nine hundred) is:


 * $2^2 \times 5^2 \times 17 \times 19 \times 23$


 * The $13$th Catalan number after $(1)$, $1$, $2$, $5$, $14$, $42$, $132$, $429$, $1430$, $4862$, $16 \, 796$, $58 \, 786$, $208 \, 012$:
 * $742 \, 900 = \dfrac 1 {13 + 1} \dbinom {2 \times 13} {13} = \dfrac 1 {14} \times 10 \, 400 \, 600$