4465
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Number
$4465$ (four thousand, four hundred and sixty-five) is:
- $5 \times 19 \times 47$
- The $94$th triangular number after $1$, $3$, $6$, $10$, $15$, $\ldots$, $3655$, $3741$, $3828$, $3916$, $4005$, $4095$, $4186$, $4278$, $4371$:
- $4465 = \ds \sum_{k \mathop = 1}^{94} k = \dfrac {94 \times \paren {94 + 1} } 2$