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108379913 = 172375017
BaseRepresentation
bin1100111010110…
…11111100001001
321112221021021212
412131123330021
5210221124123
614430542505
72454133265
oct635337411
9245837255
10108379913
11561a5484
1230367a35
13195b8b35
14105730a5
1597ac878
hex675bf09

108379913 has 6 divisors (see below), whose sum is σ = 115130526. Its totient is φ = 102004352.

The previous prime is 108379907. The next prime is 108379963. The reversal of 108379913 is 319973801.

It can be written as a sum of positive squares in 3 ways, for example, as 68095504 + 40284409 = 8252^2 + 6347^2 .

It is not a de Polignac number, because 108379913 - 24 = 108379897 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 (108379963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187220 + ... + 187797.

It is an arithmetic number, because the mean of its divisors is an integer number (19188421).

Almost surely, 2108379913 is an apocalyptic number.

It is an amenable number.

108379913 is a deficient number, since it is larger than the sum of its proper divisors (6750613).

108379913 is an equidigital number, since it uses as much as digits as its factorization.

108379913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375051 (or 375034 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 108379913 is about 10410.5673716662. The cubic root of 108379913 is about 476.7780642267.

The spelling of 108379913 in words is "one hundred eight million, three hundred seventy-nine thousand, nine hundred thirteen".

Divisors: 1 17 289 375017 6375289 108379913