6256

Number
$6256$ (six thousand, two hundred and fifty-six) is:
 * $2^4 \times 17 \times 23$


 * The $46$th octagonal number, after $1$, $8$, $21$, $40$, $65$, $\ldots$, $3816$, $4033$, $4256$, $4485$, $4720$, $4961$, $5208$, $5461$, $5720$, $5985$:
 * $6256 = \displaystyle \sum_{k \mathop = 1}^{46} \left({6 k - 5}\right) = 46 \left({3 \times 46 - 2}\right)$