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Is 5120 a perfect number? [SOLVED]

Answer


5120 is not perfect because:

1 + 2 + 4 + 5 + 8 + 10 + 16 + 20 + 32 + 40 + 64 + 80 + 128 + 160 + 256 + 320 + 512 + 640 + 1024 + 1280 + 2560 5120
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