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1909 (MCMIX) was a common year starting on Friday (see link for calendar). The number 1909 is a hyperperfect number, because the sum of its proper divisors (23 and 83) is a divisor of n-1 (18 January & March April & June July & September October - December Date unknown January February March April May June July August September October November December Unknown dates Deaths Unknown dates Nobel Prizes av:1909 | |||||||
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