854

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Number

$854$ (eight hundred and fifty-four) is:

$2 \times 7 \times 61$


The $2$nd, with $567$, of $2$ positive integers which, together with their square, use all the digits from $1$ to $9$:
$854^2 = 729 \, 316$


Also see


Sources

  • 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $567$
  • 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $854$
  • 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $567$
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