5,500,002,244

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Number

$5 \, 500 \, 002 \, 244$:

$2^2 \times 11^2 \times 3371^2$

The $74 \, 162$nd square number:

$5 \, 500 \, 002 \, 244 = 74 \, 162 \times 74 \, 162$

Has the property that it is a square whose digits occur in $5$ adjacent pairs:

$74 \, 162^2 = 5 \, 500 \, 002 \, 244$

Also see

• Previous  ... Next: Square Number

Sources

• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $74,162$