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27942943882 = 272887691349
BaseRepresentation
bin11010000001100001…
…110111110010001010
32200010101120121212111
4122001201313302022
5424211343201012
620500430132534
72006311050460
oct320141676212
980111517774
1027942943882
111093a077357
1254ba05114a
132834161a29
1414d117a830
15ad8245ba7
hex681877c8a

27942943882 has 16 divisors (see below), whose sum is σ = 47918851200. Its totient is φ = 11971381968.

The previous prime is 27942943879. The next prime is 27942943891. The reversal of 27942943882 is 28834924972.

It is a happy number.

It is a super-3 number, since 3×279429438823 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305257 + ... + 386092.

It is an arithmetic number, because the mean of its divisors is an integer number (2994928200).

Almost surely, 227942943882 is an apocalyptic number.

27942943882 is a deficient number, since it is larger than the sum of its proper divisors (19975907318).

27942943882 is a wasteful number, since it uses less digits than its factorization.

27942943882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694245.

The product of its digits is 13934592, while the sum is 58.

The spelling of 27942943882 in words is "twenty-seven billion, nine hundred forty-two million, nine hundred forty-three thousand, eight hundred eighty-two".

Divisors: 1 2 7 14 2887 5774 20209 40418 691349 1382698 4839443 9678886 1995924563 3991849126 13971471941 27942943882