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57284274 = 2310392693
BaseRepresentation
bin1101101010000…
…1011010110010
310222210100020210
43122201122302
5104131044044
65403444550
71263623355
oct332413262
9128710223
1057284274
112a376583
1217226756
13bb38b28
14787229c
1550681b9
hex36a16b2

57284274 has 16 divisors (see below), whose sum is σ = 115682112. Its totient is φ = 18909168.

The previous prime is 57284273. The next prime is 57284287. The reversal of 57284274 is 47248275.

57284274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57284273) 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, 45729 + ... + 46964.

It is an arithmetic number, because the mean of its divisors is an integer number (7230132).

Almost surely, 257284274 is an apocalyptic number.

57284274 is an abundant number, since it is smaller than the sum of its proper divisors (58397838).

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

57284274 is a wasteful number, since it uses less digits than its factorization.

57284274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92801.

The product of its digits is 125440, while the sum is 39.

The square root of 57284274 is about 7568.6375260016. The cubic root of 57284274 is about 385.4888354064.

The spelling of 57284274 in words is "fifty-seven million, two hundred eighty-four thousand, two hundred seventy-four".

Divisors: 1 2 3 6 103 206 309 618 92693 185386 278079 556158 9547379 19094758 28642137 57284274