116

Number
$116$ (one hundred and sixteen) is:


 * $2^2 \times 29$


 * The $2$nd term of the $2$nd $5$-tuple of consecutive integers have the property that they are not values of the divisor sum function $\map {\sigma_1} n$ for any $n$:
 * $\tuple {115, 116, 117, 118, 119}$


 * The $1$st of the $4$th pair of consecutive integers which both have $6$ divisors:
 * $\map {\sigma_0} {116} = \map {\sigma_0} {117} = 6$


 * The $9$th noncototient after $10$, $26$, $34$, $50$, $52$, $58$, $86$, $100$:
 * $\nexists m \in \Z_{>0}: m - \map \phi m = 116$
 * where $\map \phi m$ denotes the Euler $\phi$ function


 * The $11$th integer $m$ such that $m! + 1$ (its factorial plus $1$) is prime:
 * $0$, $1$, $2$, $3$, $11$, $27$, $37$, $41$, $73$, $77$, $116$


 * The $22$nd positive integer $n$ such that no factorial of an integer can end with $n$ zeroes.


 * The $54$th positive integer after $2$, $3$, $4$, $7$, $8$, $\ldots$, $95$, $96$, $100$, $101$, $102$, $107$, $112$ which cannot be expressed as the sum of distinct pentagonal numbers.