9996

Previous  ... Next

Number

$9996$ (nine thousand, nine hundred and ninety-six) is:

$2^2 \times 3 \times 7^7 \times 173$

The $4$th after $6999$, $7998$, $8997$ of the $4$-digit integers $m$ which need the largest number of reverse-and-add process iterations ($20$) before reaching a palindromic number:

$9996$, $16995$, $76956$, $\ldots$, $16668488486661$

Also see

• Previous: 4-Digit Numbers forming Longest Reverse-and-Add Sequence