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57289668 = 2238815419
BaseRepresentation
bin1101101010001…
…0101111000100
310222210121122120
43122202233010
5104131232133
65403525540
71263645162
oct332425704
9128717576
1057289668
112a37a637
12172298b0
13bb3b417
147874232
155069ab3
hex36a2bc4

57289668 has 24 divisors (see below), whose sum is σ = 133852320. Its totient is φ = 19071360.

The previous prime is 57289651. The next prime is 57289679. The reversal of 57289668 is 86698275.

57289668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57289668.

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, 7863 + ... + 13281.

It is an arithmetic number, because the mean of its divisors is an integer number (5577180).

Almost surely, 257289668 is an apocalyptic number.

It is an amenable number.

57289668 is an abundant number, since it is smaller than the sum of its proper divisors (76562652).

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

57289668 is a wasteful number, since it uses less digits than its factorization.

57289668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307 (or 6305 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 57289668 is about 7568.9938565175. The cubic root of 57289668 is about 385.5009344891.

The spelling of 57289668 in words is "fifty-seven million, two hundred eighty-nine thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 881 1762 2643 3524 5286 5419 10572 10838 16257 21676 32514 65028 4774139 9548278 14322417 19096556 28644834 57289668