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2187

The digits in the number 2187 form the two vampire numbers: 21×87=1827 and 2187=27×81. 2187 is also given by 3^7.

See also

Vampire Number

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References

Gardner, M. "Lucky Numbers and 2187." Math. Intell. 19, 26-29, Spring 1997.

Cite this as:

Weisstein, Eric W. "2187." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/2187.html

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