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57157352 = 2371020667
BaseRepresentation
bin1101101000001…
…0011011101000
310222112220010222
43122002123220
5104113013402
65401025212
71262554340
oct332023350
9128486128
1057157352
112a29a18a
1217185208
13bac3125
14783bd20
1550407a2
hex36826e8

57157352 has 16 divisors (see below), whose sum is σ = 122480160. Its totient is φ = 24495984.

The previous prime is 57157351. The next prime is 57157357. The reversal of 57157352 is 25375175.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57157351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510278 + ... + 510389.

It is an arithmetic number, because the mean of its divisors is an integer number (7655010).

Almost surely, 257157352 is an apocalyptic number.

It is an amenable number.

57157352 is an abundant number, since it is smaller than the sum of its proper divisors (65322808).

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

57157352 is a wasteful number, since it uses less digits than its factorization.

57157352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020680 (or 1020676 counting only the distinct ones).

The product of its digits is 36750, while the sum is 35.

The square root of 57157352 is about 7560.2481440757. The cubic root of 57157352 is about 385.2039218797.

The spelling of 57157352 in words is "fifty-seven million, one hundred fifty-seven thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 1020667 2041334 4082668 7144669 8165336 14289338 28578676 57157352