2615

From ProofWiki
Jump to navigation Jump to search

Previous  ... Next

Number

$2615$ (two thousand, six hundred and fifteen) is:

$5 \times 523$


Has the property that its reversal multiplied by $11$ equals the reversal of its product with $11$:
$2615 \times 11 = 28 \, 765$; $5162 \times 11 = 56 \, 782$
Simply used by David Wells in his Curious and Interesting Numbers as a canonical example of such a number.
Nothing to see here, move along now.


Also see


Sources