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27988110113 = 191597922391
BaseRepresentation
bin11010000100001110…
…001010101100100001
32200020112120022021212
4122010032022230201
5424304424010423
620505122155505
72010400003445
oct320416125441
980215508255
1027988110113
1110962616417
1255111b2b95
132840616c02
1414d7176825
15adc1b8578
hex68438ab21

27988110113 has 8 divisors (see below), whose sum is σ = 29479648320. Its totient is φ = 26498419920.

The previous prime is 27988110109. The next prime is 27988110131. The reversal of 27988110113 is 31101188972.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27988110113 - 22 = 27988110109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27988110313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430853 + ... + 491538.

It is an arithmetic number, because the mean of its divisors is an integer number (3684956040).

Almost surely, 227988110113 is an apocalyptic number.

It is an amenable number.

27988110113 is a deficient number, since it is larger than the sum of its proper divisors (1491538207).

27988110113 is a wasteful number, since it uses less digits than its factorization.

27988110113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924007.

The product of its (nonzero) digits is 24192, while the sum is 41.

The spelling of 27988110113 in words is "twenty-seven billion, nine hundred eighty-eight million, one hundred ten thousand, one hundred thirteen".

Divisors: 1 19 1597 30343 922391 17525429 1473058427 27988110113