2924

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Number

$2924$ (two thousand, nine hundred and twenty-four) is:

$2^2 \times 17 \times 43$

The larger of the $3$rd amicable pair, with $2620$:

$\map {\sigma_1} {2620} = \map {\sigma_1} {2924} = 5544 = 2620 + 2924$

The $12$th positive integer after $504$, $756$, $806$, $1008$, $1148$, $1209$, $1472$, $1512$, $2016$, $2208$, $2418$ which can be expressed as the product of $2$ two-digit numbers in $2$ ways such that the factors in one of those pairs is the reversal of each of the factors in the other:

$2924 = 34 \times 86 = 68 \times 43$

Arithmetic Functions on $2924$

\(\ds \map {\sigma_1} { 2924 }\)

\(=\)

\(\ds 5544\)

$\sigma_1$ of $2924$

Also see

• Previous  ... Next: Products of 2-Digit Pairs which Reversed reveal Same Product
• Previous  ... Next: Amicable Pair

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $2620$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $2620$