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108885520 = 2451361069
BaseRepresentation
bin1100111110101…
…11011000010000
321120212221212001
412133113120100
5210333314040
614445443344
72461340332
oct637273020
9246787761
10108885520
1156510337
1230570554
1319735003
1410665452
15985c59a
hex67d7610

108885520 has 20 divisors (see below), whose sum is σ = 253159020. Its totient is φ = 43554176.

The previous prime is 108885509. The next prime is 108885577. The reversal of 108885520 is 25588801.

It can be written as a sum of positive squares in 2 ways, for example, as 82301184 + 26584336 = 9072^2 + 5156^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 108885520.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680455 + ... + 680614.

It is an arithmetic number, because the mean of its divisors is an integer number (12657951).

Almost surely, 2108885520 is an apocalyptic number.

108885520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108885520 is an abundant number, since it is smaller than the sum of its proper divisors (144273500).

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

108885520 is a wasteful number, since it uses less digits than its factorization.

108885520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361082 (or 1361076 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 37.

The square root of 108885520 is about 10434.8224709384. The cubic root of 108885520 is about 477.5183257314.

The spelling of 108885520 in words is "one hundred eight million, eight hundred eighty-five thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1361069 2722138 5444276 6805345 10888552 13610690 21777104 27221380 54442760 108885520