994
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Number
$994$ (nine hundred and ninety-four) is:
- $2 \times 7 \times 71$
- The $12$th positive integer after $1$, $7$, $102$, $110$, $142$, $159$, $187$, $381$, $690$, $714$, $770$ the sum of whose divisors is a cube:
- $\map {\sigma_1} {994} = 1728 = 12^3$
- The $209$th nontotient after $992$:
- $\nexists m \in \Z_{>0}: \map \phi m = 994$
- where $\map \phi m$ denotes the Euler $\phi$ function
Arithmetic Functions on $994$
\(\ds \map {\sigma_1} { 994 }\) | \(=\) | \(\ds 1728\) | $\sigma_1$ of $994$ |