5929

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


 * $7^2 \times 11^2$


 * The $77$th square number after $1$, $4$, $9$, $16$, $25$, $36$, $\ldots$, $5041$, $5184$, $5329$, $5476$, $5625$, $5776$
 * $5929 = 77 \times 77$


 * The $49$th heptagonal number after $1$, $7$, $18$, $34$, $5$, $81$, $112$, $\ldots$, $3744$, $3940$, $4141$, $4347$, $4558$, $4774$, $4995$, $5221$, $5452$, $5688$:
 * $5929 = \displaystyle \sum_{k \mathop = 1}^{49} \left({5 k - 4}\right) = \dfrac {49 \left({5 \times 49 - 3}\right)} 2$