8801
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Number
$8801$ (eight thousand, eight hundred and one) is:
- $13 \times 677$
- The magic constant of a magic square of order $26$, after $1$, $(5)$, $15$, $34$, $\ldots$, $2465$, $2925$, $3439$, $4010$, $4641$, $5335$, $6095$, $6924$, $7825$:
- $\ds 8801 = \dfrac 1 {26} \sum_{k \mathop = 1}^{26^2} k = \dfrac {26 \paren {26^2 + 1} } 2$