69,696

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Number

$69 \, 696$ (sixty-nine thousand, six hundred and ninety-six) is:

$2^6 \times 3^2 \times 11^2$

The $2$nd palindromic square with a non-palindromic square root after $676$:

$69 \, 696 = 264^2$

The $22$nd square after $1$, $4$, $9$, $16$, $25$, $\ldots$, $441$, $484$, $676$, $1444$, $7744$, $11 \, 881$, $29 \, 929$, $44 \, 944$, $55 \, 225$ which has no more than $2$ distinct digits and does not end in $0$:

$69 \, 696 = 264^2$

The $264$th square number:

$69 \, 696 = 264 \times 264$

Also see

• Previous  ... Next: Palindromic Squares with Non-Palindromic Roots
• Previous  ... Next: Squares with No More than 2 Distinct Digits
• Previous  ... Next: Square Number

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $69,696$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $69,696$