1210

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Number

$1210$ (one thousand, two hundred and ten) is:

$2 \times 5 \times 11^2$

The larger of the $2$nd amicable pair, with $1184$:

$\map {\sigma_1} {1184} = \map {\sigma_1} {1210} = 2394 = 1184 + 1210$

Arithmetic Functions on $1210$

\(\ds \map {\sigma_1} { 1210 }\)

\(=\)

\(\ds 2394\)

$\sigma_1$ of $1210$

Also see

• Previous  ... Next: Amicable Pair

Sources

• 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $1210$
• 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $1210$