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27665422060 = 2251383271103
BaseRepresentation
bin11001110000111111…
…001101011011101100
32122102001101001111111
4121300333031123230
5423124322001220
620413114001404
71666401131113
oct316077153354
978361331444
1027665422060
1110807456081
125441116264
1327bb804333
1414a6378c7a
15abdbc715a
hex670fcd6ec

27665422060 has 12 divisors (see below), whose sum is σ = 58097386368. Its totient is φ = 11066168816.

The previous prime is 27665422021. The next prime is 27665422069. The reversal of 27665422060 is 6022456672.

It is not an unprimeable number, because it can be changed into a prime (27665422069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691635532 + ... + 691635571.

It is an arithmetic number, because the mean of its divisors is an integer number (4841448864).

Almost surely, 227665422060 is an apocalyptic number.

27665422060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27665422060 is an abundant number, since it is smaller than the sum of its proper divisors (30431964308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27665422060 is a wasteful number, since it uses less digits than its factorization.

27665422060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383271112 (or 1383271110 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 27665422060 in words is "twenty-seven billion, six hundred sixty-five million, four hundred twenty-two thousand, sixty".

Divisors: 1 2 4 5 10 20 1383271103 2766542206 5533084412 6916355515 13832711030 27665422060