Base | Representation |
---|---|
bin | 1101101010000… |
… | …1100110001101 |
3 | 10222210101020212 |
4 | 3122201212031 |
5 | 104131110010 |
6 | 5403452205 |
7 | 1263625451 |
oct | 332414615 |
9 | 128711225 |
10 | 57285005 |
11 | 2a377088 |
12 | 17227065 |
13 | bb3926b |
14 | 7872661 |
15 | 5068505 |
hex | 36a198d |
57285005 has 8 divisors (see below), whose sum is σ = 71112600. Its totient is φ = 44247616.
The previous prime is 57284989. The next prime is 57285013. The reversal of 57285005 is 50058275.
It is a happy number.
57285005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 1901641 + 55383364 = 1379^2 + 7442^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 57285005 - 24 = 57284989 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197390 + ... + 197679.
It is an arithmetic number, because the mean of its divisors is an integer number (8889075).
Almost surely, 257285005 is an apocalyptic number.
It is an amenable number.
57285005 is a deficient number, since it is larger than the sum of its proper divisors (13827595).
57285005 is a wasteful number, since it uses less digits than its factorization.
57285005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 395103.
The product of its (nonzero) digits is 14000, while the sum is 32.
The square root of 57285005 is about 7568.6858172341. The cubic root of 57285005 is about 385.4904751300.
The spelling of 57285005 in words is "fifty-seven million, two hundred eighty-five thousand, five".
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