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23172108 = 2231931009
BaseRepresentation
bin101100001100…
…1010000001100
31121121021011020
41120121100030
521413001413
62144354140
7400650111
oct130312014
947537136
1023172108
1112097603
127915950
134a5420b
143112908
15207ac23
hex161940c

23172108 has 12 divisors (see below), whose sum is σ = 54068280. Its totient is φ = 7724032.

The previous prime is 23172089. The next prime is 23172113. The reversal of 23172108 is 80127132.

It is a tau number, because it is divible by the number of its divisors (12).

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, 965493 + ... + 965516.

It is an arithmetic number, because the mean of its divisors is an integer number (4505690).

Almost surely, 223172108 is an apocalyptic number.

It is an amenable number.

23172108 is an abundant number, since it is smaller than the sum of its proper divisors (30896172).

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

23172108 is a wasteful number, since it uses less digits than its factorization.

23172108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931016 (or 1931014 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 23172108 is about 4813.7415801017. The cubic root of 23172108 is about 285.0942870552.

The spelling of 23172108 in words is "twenty-three million, one hundred seventy-two thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 1931009 3862018 5793027 7724036 11586054 23172108