6175

Number
$6175$ (six thousand, one hundred and seventy-five) is:


 * $5^2 \times 13 \times 19$


 * The $50$th heptagonal number after $1$, $7$, $18$, $34$, $55$, $81$, $112$, $\ldots$, $3744$, $3940$, $4141$, $4347$, $4558$, $4774$, $4995$, $5221$, $5452$, $5688$, $5929$:
 * $6175 = \ds \sum_{k \mathop = 1}^{50} \paren {5 k - 4} = \dfrac {50 \paren {5 \times 50 - 3} } 2$


 * The $1069$th harshad number:
 * $6175 = 325 \times 19 = 325 \times \paren {6 + 1 + 7 + 5}$