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57580640 = 25513193147
BaseRepresentation
bin1101101110100…
…1110001100000
311000100101210022
43123221301200
5104220040030
65414053012
71266266405
oct333516140
9130311708
1057580640
112a559207
121734a168
13bc109b0
14790c2ac
1550c5de5
hex36e9c60

57580640 has 192 divisors, whose sum is σ = 162570240. Its totient is φ = 19077120.

The previous prime is 57580639. The next prime is 57580673. The reversal of 57580640 is 4608575.

57580640 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 57580640.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1225097 + ... + 1225143.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 257580640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57580640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81285120).

57580640 is an abundant number, since it is smaller than the sum of its proper divisors (104989600).

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

57580640 is a wasteful number, since it uses less digits than its factorization.

57580640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 57580640 is about 7588.1908252231. The cubic root of 57580640 is about 386.1524807657.

The spelling of 57580640 in words is "fifty-seven million, five hundred eighty thousand, six hundred forty".