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57550302 = 2323197239
BaseRepresentation
bin1101101110001…
…0010111011110
311000021212011200
43123202113132
5104213102202
65413300330
71266112065
oct333422736
9130255150
1057550302
112a538437
12173346a6
13bbccc44
1479011dc
1550bbe1c
hex36e25de

57550302 has 12 divisors (see below), whose sum is σ = 124692360. Its totient is φ = 19183428.

The previous prime is 57550289. The next prime is 57550303. The reversal of 57550302 is 20305575.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57550303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1598602 + ... + 1598637.

It is an arithmetic number, because the mean of its divisors is an integer number (10391030).

Almost surely, 257550302 is an apocalyptic number.

57550302 is an abundant number, since it is smaller than the sum of its proper divisors (67142058).

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

57550302 is a wasteful number, since it uses less digits than its factorization.

57550302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197247 (or 3197244 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 57550302 is about 7586.1915346239. The cubic root of 57550302 is about 386.0846503743.

Adding to 57550302 its reverse (20305575), we get a palindrome (77855877).

The spelling of 57550302 in words is "fifty-seven million, five hundred fifty thousand, three hundred two".

Divisors: 1 2 3 6 9 18 3197239 6394478 9591717 19183434 28775151 57550302