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108474813 = 3267317909
BaseRepresentation
bin1100111011100…
…11000110111101
321120010002110200
412131303012331
5210232143223
614432554113
72455010046
oct635630675
9246102420
10108474813
115625a807
12303b2939
13196200a5
14105998cd
1597caa43
hex67731bd

108474813 has 12 divisors (see below), whose sum is σ = 156927420. Its totient is φ = 72205056.

The previous prime is 108474803. The next prime is 108474827. The reversal of 108474813 is 318474801.

108474813 is a `hidden beast` number, since 108 + 474 + 81 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41447844 + 67026969 = 6438^2 + 8187^2 .

It is a de Polignac number, because none of the positive numbers 2k-108474813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108474803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2898 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (13077285).

Almost surely, 2108474813 is an apocalyptic number.

It is an amenable number.

108474813 is a deficient number, since it is larger than the sum of its proper divisors (48452607).

108474813 is a wasteful number, since it uses less digits than its factorization.

108474813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18588 (or 18585 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 108474813 is about 10415.1242431380. The cubic root of 108474813 is about 476.9171829903.

The spelling of 108474813 in words is "one hundred eight million, four hundred seventy-four thousand, eight hundred thirteen".

Divisors: 1 3 9 673 2019 6057 17909 53727 161181 12052757 36158271 108474813