123,456,789
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Number
$123 \, 456 \, 789$ is:
- $3^2 \times 3607 \times 3803$
- Remains penholodigital when multiplied by $2$, $4$, $5$, $7$ and $8$
Also see
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $123,456,789$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $123,456,789$