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108520887 = 3211171439
BaseRepresentation
bin1100111011111…
…10010110110111
321120012102200010
412131332112313
5210240132022
614433551303
72455261266
oct635762667
9246172603
10108520887
1156291392
1230415533
1319638057
14105ac5dd
1597d950c
hex677e5b7

108520887 has 8 divisors (see below), whose sum is σ = 145381120. Its totient is φ = 72003960.

The previous prime is 108520879. The next prime is 108520897. The reversal of 108520887 is 788025801.

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

It is not a de Polignac number, because 108520887 - 23 = 108520879 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 (108520807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85087 + ... + 86352.

It is an arithmetic number, because the mean of its divisors is an integer number (18172640).

Almost surely, 2108520887 is an apocalyptic number.

108520887 is a deficient number, since it is larger than the sum of its proper divisors (36860233).

108520887 is a wasteful number, since it uses less digits than its factorization.

108520887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171653.

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 108520887 is about 10417.3358878362. The cubic root of 108520887 is about 476.9846959653.

The spelling of 108520887 in words is "one hundred eight million, five hundred twenty thousand, eight hundred eighty-seven".

Divisors: 1 3 211 633 171439 514317 36173629 108520887