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520132542 = 2386688757
BaseRepresentation
bin11111000000001…
…001011110111110
31100020201110201020
4133000021132332
52031123220132
6123340125010
715614024256
oct3700113676
91306643636
10520132542
11247668306
12126236766
13839b3947
144d116966
15309e352c
hex1f0097be

520132542 has 8 divisors (see below), whose sum is σ = 1040265096. Its totient is φ = 173377512.

The previous prime is 520132541. The next prime is 520132567. The reversal of 520132542 is 245231025.

It is a sphenic number, since it is the product of 3 distinct primes.

520132542 is an admirable number.

It is a super-2 number, since 2×5201325422 = 541075722494763528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520132541) 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, 43344373 + ... + 43344384.

It is an arithmetic number, because the mean of its divisors is an integer number (130033137).

Almost surely, 2520132542 is an apocalyptic number.

520132542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520132542 is a wasteful number, since it uses less digits than its factorization.

520132542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86688762.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520132542 is about 22806.4144924186. The cubic root of 520132542 is about 804.2134683540.

Adding to 520132542 its reverse (245231025), we get a palindrome (765363567).

The spelling of 520132542 in words is "five hundred twenty million, one hundred thirty-two thousand, five hundred forty-two".

Divisors: 1 2 3 6 86688757 173377514 260066271 520132542