1190
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Number
$1190$ (one thousand, one hundred and ninety) is:
- $2 \times 5 \times 7 \times 17$
- The $21$st primitive semiperfect number after $6$, $20$, $28$, $88$, $104$, $272$, $304$, $350$, $368$, $464$, $490$, $496$, $550$, $572$, $650$, $748$, $770$, $910$, $945$, $1184$:
- $1190 = 1 + 2 + 5 + 10 + 14 + 17 + 34 + 70 + 85 + 119 + 238 + 595$
- The $28$th second pentagonal number after $2$, $7$, $15$, $26$, $\ldots$, $610$, $672$, $737$, $805$, $876$, $950$, $1027$, $1107$:
- $1190 = \dfrac {28 \paren {3 \times 28 + 1} } 2$
- The $56$th generalized pentagonal number after $1$, $2$, $5$, $7$, $12$, $15$, $\ldots$, $610$, $651$, $672$, $715$, $737$, $782$, $805$, $852$, $876$, $925$, $950$, $1001$, $1027$, $1080$, $1107$, $1162$:
- $1190 = \dfrac {28 \paren {3 \times 28 + 1} } 2$
Arithmetic Functions on $1190$
| \(\ds \map {\sigma_0} { 1190 }\) | \(=\) | \(\ds 16\) | $\sigma_0$ of $1190$ |
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