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): $2620$