Base | Representation |
---|---|
bin | 100110011110… |
… | …1100100000100 |
3 | 1101222000001020 |
4 | 1030331210010 |
5 | 20131100413 |
6 | 2000231140 |
7 | 333325362 |
oct | 114754404 |
9 | 41860036 |
10 | 20175108 |
11 | 1042a948 |
12 | 690b4b0 |
13 | 4245045 |
14 | 2972632 |
15 | 1b87c23 |
hex | 133d904 |
20175108 has 12 divisors (see below), whose sum is σ = 47075280. Its totient is φ = 6725032.
The previous prime is 20175061. The next prime is 20175121. The reversal of 20175108 is 80157102.
It is a tau number, because it is divible by the number of its divisors (12).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840618 + ... + 840641.
It is an arithmetic number, because the mean of its divisors is an integer number (3922940).
Almost surely, 220175108 is an apocalyptic number.
It is an amenable number.
20175108 is an abundant number, since it is smaller than the sum of its proper divisors (26900172).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20175108 is a wasteful number, since it uses less digits than its factorization.
20175108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1681266 (or 1681264 counting only the distinct ones).
The product of its (nonzero) digits is 560, while the sum is 24.
The square root of 20175108 is about 4491.6709585632. The cubic root of 20175108 is about 272.2316545824.
The spelling of 20175108 in words is "twenty million, one hundred seventy-five thousand, one hundred eight".
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