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108520069 = 780919163
BaseRepresentation
bin1100111011111…
…10001010000101
321120012101112211
412131332022011
5210240120234
614433543421
72455256020
oct635761205
9246171484
10108520069
1156290809
1230414b71
1319637878
14105ac1b7
1597d9164
hex677e285

108520069 has 8 divisors (see below), whose sum is σ = 124182720. Its totient is φ = 92897376.

The previous prime is 108520063. The next prime is 108520081. The reversal of 108520069 is 960025801.

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

It is a cyclic number.

It is not a de Polignac number, because 108520069 - 217 = 108388997 is a prime.

It is a super-2 number, since 2×1085200692 = 23553210751529522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108520069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108520063) 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, 3919 + ... + 15244.

It is an arithmetic number, because the mean of its divisors is an integer number (15522840).

Almost surely, 2108520069 is an apocalyptic number.

It is an amenable number.

108520069 is a deficient number, since it is larger than the sum of its proper divisors (15662651).

108520069 is an equidigital number, since it uses as much as digits as its factorization.

108520069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19979.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 108520069 is about 10417.2966262846. The cubic root of 108520069 is about 476.9834975033.

The spelling of 108520069 in words is "one hundred eight million, five hundred twenty thousand, sixty-nine".

Divisors: 1 7 809 5663 19163 134141 15502867 108520069