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57152378 = 2237271709
BaseRepresentation
bin1101101000000…
…1001101111010
310222112122022202
43122001031322
5104112334003
65400550202
71262534003
oct332011572
9128478282
1057152378
112a296478
1217182362
13bac0a9a
14783a1aa
15503e088
hex368137a

57152378 has 16 divisors (see below), whose sum is σ = 89631360. Its totient is φ = 27280176.

The previous prime is 57152371. The next prime is 57152393. The reversal of 57152378 is 87325175.

It is a happy number.

57152378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×571523782 = 6532788622109768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57152371) 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 7 ways as a sum of consecutive naturals, for example, 32588 + ... + 34296.

It is an arithmetic number, because the mean of its divisors is an integer number (5601960).

Almost surely, 257152378 is an apocalyptic number.

57152378 is a deficient number, since it is larger than the sum of its proper divisors (32478982).

57152378 is a wasteful number, since it uses less digits than its factorization.

57152378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461.

The product of its digits is 58800, while the sum is 38.

The square root of 57152378 is about 7559.9191794622. The cubic root of 57152378 is about 385.1927476981.

The spelling of 57152378 in words is "fifty-seven million, one hundred fifty-two thousand, three hundred seventy-eight".

Divisors: 1 2 23 46 727 1454 1709 3418 16721 33442 39307 78614 1242443 2484886 28576189 57152378