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57345768 = 23322712939
BaseRepresentation
bin1101101011000…
…0011011101000
310222220110121100
43122300123220
5104140031033
65405041400
71264300554
oct332603350
9128813540
1057345768
112a4087a7
1217256260
13bb5ab0c
14788a864
15507b513
hex36b06e8

57345768 has 48 divisors (see below), whose sum is σ = 155937600. Its totient is φ = 19038240.

The previous prime is 57345767. The next prime is 57345787. The reversal of 57345768 is 86754375.

57345768 is a `hidden beast` number, since 5 + 73 + 4 + 576 + 8 = 666.

57345768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57345763) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18043 + ... + 20981.

It is an arithmetic number, because the mean of its divisors is an integer number (3248700).

Almost surely, 257345768 is an apocalyptic number.

It is an amenable number.

57345768 is an abundant number, since it is smaller than the sum of its proper divisors (98591832).

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

57345768 is a wasteful number, since it uses less digits than its factorization.

57345768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222 (or 3215 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 57345768 is about 7572.6988583992. The cubic root of 57345768 is about 385.6267253333.

The spelling of 57345768 in words is "fifty-seven million, three hundred forty-five thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 271 542 813 1084 1626 2168 2439 2939 3252 4878 5878 6504 8817 9756 11756 17634 19512 23512 26451 35268 52902 70536 105804 211608 796469 1592938 2389407 3185876 4778814 6371752 7168221 9557628 14336442 19115256 28672884 57345768