4030

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Number

$4030$ (four thousand and thirty) is:

$2 \times 5 \times 13 \times 31$

The $3$rd weird number after $70$, $836$:

$\map {\sigma_1} {4030} - 4030 = 4034$: its aliquot parts are $1$, $2$, $5$, $10$, $13$, $26$, $31$, $62$, $65$, $130$, $155$, $310$, $403$, $806$, $2015$, from which $4030$ cannot be made.

Arithmetic Functions on $4030$

\(\ds \map {\sigma_1} { 4030 }\)

\(=\)

\(\ds 8064\)

$\sigma_1$ of $4030$

Also see

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