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12720856952710 = 259721130859551
BaseRepresentation
bin1011100100011100111000…
…1010001110111110000110
31200001002202101121110220101
42321013032022032332012
53131404303334441320
643015514144154314
72452023460012234
oct271071612167606
950032671543811
1012720856952710
1140649811327a5
12151547930899a
13713757c3825a
1431d99ad1b954
15170d730bac0a
hexb91ce28ef86

12720856952710 has 16 divisors (see below), whose sum is σ = 22899898161792. Its totient is φ = 5087819304000.

The previous prime is 12720856952701. The next prime is 12720856952737. The reversal of 12720856952710 is 1725965802721.

It is a super-2 number, since 2×127208569527102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65332566 + ... + 65526985.

It is an arithmetic number, because the mean of its divisors is an integer number (1431243635112).

Almost surely, 212720856952710 is an apocalyptic number.

12720856952710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12720856952710 is a deficient number, since it is larger than the sum of its proper divisors (10179041209082).

12720856952710 is a wasteful number, since it uses less digits than its factorization.

12720856952710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130869279.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 12720856952710 in words is "twelve trillion, seven hundred twenty billion, eight hundred fifty-six million, nine hundred fifty-two thousand, seven hundred ten".

Divisors: 1 2 5 10 9721 19442 48605 97210 130859551 261719102 654297755 1308595510 1272085695271 2544171390542 6360428476355 12720856952710