Base | Representation |
---|---|
bin | 1101100111000… |
… | …1100011001101 |
3 | 10222102101021222 |
4 | 3121301203031 |
5 | 104103310310 |
6 | 5355333125 |
7 | 1262145626 |
oct | 331614315 |
9 | 128371258 |
10 | 57088205 |
11 | 2a252239 |
12 | 171511a5 |
13 | ba9a805 |
14 | 7820a4d |
15 | 502a055 |
hex | 36718cd |
57088205 has 18 divisors (see below), whose sum is σ = 71442378. Its totient is φ = 43791840.
The previous prime is 57088201. The next prime is 57088237. The reversal of 57088205 is 50288075.
It can be written as a sum of positive squares in 3 ways, for example, as 14303524 + 42784681 = 3782^2 + 6541^2 .
It is not a de Polignac number, because 57088205 - 22 = 57088201 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57088201) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 523691 + ... + 523799.
It is an arithmetic number, because the mean of its divisors is an integer number (3969021).
Almost surely, 257088205 is an apocalyptic number.
It is an amenable number.
57088205 is a deficient number, since it is larger than the sum of its proper divisors (14354173).
57088205 is an equidigital number, since it uses as much as digits as its factorization.
57088205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 285 (or 145 counting only the distinct ones).
The product of its (nonzero) digits is 22400, while the sum is 35.
The square root of 57088205 is about 7555.6736959718. The cubic root of 57088205 is about 385.0485237092.
The spelling of 57088205 in words is "fifty-seven million, eighty-eight thousand, two hundred five".
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