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57788485 = 511557697
BaseRepresentation
bin1101110001110…
…0100001000101
311000201221220021
43130130201011
5104243212420
65422335141
71301123356
oct334344105
9130657807
1057788485
112a690387
121742a4b1
13bc84491
147963d2d
1551177aa
hex371c845

57788485 has 4 divisors (see below), whose sum is σ = 69346188. Its totient is φ = 46230784.

The previous prime is 57788477. The next prime is 57788531. The reversal of 57788485 is 58488775.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27384289 + 30404196 = 5233^2 + 5514^2 .

It is a cyclic number.

It is not a de Polignac number, because 57788485 - 23 = 57788477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5778844 + ... + 5778853.

It is an arithmetic number, because the mean of its divisors is an integer number (17336547).

Almost surely, 257788485 is an apocalyptic number.

It is an amenable number.

57788485 is a deficient number, since it is larger than the sum of its proper divisors (11557703).

57788485 is a wasteful number, since it uses less digits than its factorization.

57788485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557702.

The product of its digits is 2508800, while the sum is 52.

The square root of 57788485 is about 7601.8737821671. The cubic root of 57788485 is about 386.6165458056.

The spelling of 57788485 in words is "fifty-seven million, seven hundred eighty-eight thousand, four hundred eighty-five".

Divisors: 1 5 11557697 57788485