The sixth perfect number is 8,589,869,056.
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0, 1To be both a square and a cube, the number has to be a sixth power. You don't need to calculate though, since 06=0 and 16=1.The next 2 sixth powers are 26=64 and 36=729.
sixth is an ordinal number already. six is the related cardinal number.
6 is defined as a perfect number because the sum of the divisors of 6 (1,2,3,6) sum up to 12, which is twice 6. Equivalently, the sum of its proper divisors (1,2,3) is the number itself.The origin of the phrase perfect number is unclear, but some theologians suggest it originates from the Bible, where God created the world in six days, with man on the sixth day.
The sum of the 1st perfect number and 2nd perfect number is. . . 34!
If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.