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108928055 = 521785611
BaseRepresentation
bin1100111111000…
…01110000110111
321120222010012102
412133201300313
5210341144210
614450412315
72461605335
oct637416067
9246863172
10108928055
115653a295
123059109b
131974b492
1410676b55
159869ea5
hex67e1c37

108928055 has 4 divisors (see below), whose sum is σ = 130713672. Its totient is φ = 87142440.

The previous prime is 108928051. The next prime is 108928097. The reversal of 108928055 is 550829801.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 108928055 - 22 = 108928051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108928051) 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, 10892801 + ... + 10892810.

It is an arithmetic number, because the mean of its divisors is an integer number (32678418).

Almost surely, 2108928055 is an apocalyptic number.

108928055 is a deficient number, since it is larger than the sum of its proper divisors (21785617).

108928055 is an equidigital number, since it uses as much as digits as its factorization.

108928055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21785616.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 108928055 is about 10436.8603995646. The cubic root of 108928055 is about 477.5804968318.

The spelling of 108928055 in words is "one hundred eight million, nine hundred twenty-eight thousand, fifty-five".

Divisors: 1 5 21785611 108928055