132
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Number
$132$ (one hundred and thirty-two) is:
- $2^2 \times 3 \times 11$
- The $1$st (positive) integer which is the sum of all the $2$-digit (positive) integers formed from its own digits:
- $132 = 12 + 13 + 21 + 23 + 31 + 32$
- The $6$th Catalan number after $(1)$, $1$, $2$, $5$, $14$, $42$:
- $132 = \dfrac 1 {6 + 1} \dbinom {2 \times 6} 6 = \dfrac 1 7 \times 924$
- The $19$th Zuckerman number after $1$, $2$, $3$, $4$, $5$, $6$, $7$, $8$, $9$, $11$, $12$, $15$, $24$, $36$, $111$, $112$, $115$, $128$:
- $132 = 22 \times 6 = 22 \times \left({1 \times 3 \times 2}\right)$
Also see
- Previous ... Next: Catalan Number
- Previous ... Next: Zuckerman Number
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $132$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $132$