9,800,817

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Number

$9 \, 800 \, 817$ (nine million, eight hundred thousand, eight hundred and seventeen) is:

$3 \times 13^3 \times 1487$


The $23$rd pluperfect digital invariant after $1$, $2$, $3$, $4$, $5$, $6$, $\ldots$, $8208$, $9474$, $54 \, 748$, $92 \, 727$, $93 \, 084$, $548 \, 834$, $1 \, 741 \, 725$, $4 \, 210 \, 818$:
\(\ds \quad \ \ \) \(\ds 9 \, 800 \, 817\) \(=\) \(\ds 4 \, 782 \, 969 + 2 \, 097 \, 152 + 0 + 0 + 2 \, 097 \, 152 + 1 + 823 \, 543\)
\(\ds \) \(=\) \(\ds 9^7 + 8^7 + 0^7 + 0^7 + 8^7 + 1^7 + 7^7\)


Also see