5929

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Number

$5929$ (five thousand, nine hundred and twenty-nine) is:

$7^2 \times 11^2$

The $49$th heptagonal number after $1$, $7$, $18$, $34$, $55$, $81$, $112$, $\ldots$, $3744$, $3940$, $4141$, $4347$, $4558$, $4774$, $4995$, $5221$, $5452$, $5688$:

$5929 = \ds \sum_{k \mathop = 1}^{49} \paren {5 k - 4} = \dfrac {49 \paren {5 \times 49 - 3} } 2$

The $77$th square number after $1$, $4$, $9$, $16$, $25$, $36$, $\ldots$, $5041$, $5184$, $5329$, $5476$, $5625$, $5776$

$5929 = 77 \times 77$

Also see

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