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57384790 = 25431131181
BaseRepresentation
bin1101101011100…
…1111101010110
310222222110010121
43122321331112
5104142303130
65405542154
71264522411
oct332717526
9128873117
1057384790
112a435051
121727495a
13bb727c8
14789ab78
155087d7a
hex36b9f56

57384790 has 32 divisors (see below), whose sum is σ = 106720416. Its totient is φ = 22202880.

The previous prime is 57384781. The next prime is 57384841. The reversal of 57384790 is 9748375.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48000 + ... + 49180.

It is an arithmetic number, because the mean of its divisors is an integer number (3335013).

Almost surely, 257384790 is an apocalyptic number.

57384790 is a deficient number, since it is larger than the sum of its proper divisors (49335626).

57384790 is a wasteful number, since it uses less digits than its factorization.

57384790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 57384790 is about 7575.2749125032. The cubic root of 57384790 is about 385.7141744725.

The spelling of 57384790 in words is "fifty-seven million, three hundred eighty-four thousand, seven hundred ninety".

Divisors: 1 2 5 10 43 86 113 215 226 430 565 1130 1181 2362 4859 5905 9718 11810 24295 48590 50783 101566 133453 253915 266906 507830 667265 1334530 5738479 11476958 28692395 57384790