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523214442 = 232231263803
BaseRepresentation
bin11111001011111…
…001111001101010
31100110112001021200
4133023321321222
52032420330232
6123530145030
715652151352
oct3713717152
91313461250
10523214442
11249382833
12127282176
138452265a
144d6b9b62
1530e0177c
hex1f2f9e6a

523214442 has 24 divisors (see below), whose sum is σ = 1182920544. Its totient is φ = 166821864.

The previous prime is 523214437. The next prime is 523214443. The reversal of 523214442 is 244412325.

523214442 is a `hidden beast` number, since 5 + 2 + 3 + 214 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (523214443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 631488 + ... + 632315.

It is an arithmetic number, because the mean of its divisors is an integer number (49288356).

Almost surely, 2523214442 is an apocalyptic number.

523214442 is an abundant number, since it is smaller than the sum of its proper divisors (659706102).

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

523214442 is a wasteful number, since it uses less digits than its factorization.

523214442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263834 (or 1263831 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 523214442 is about 22873.8812185427. The cubic root of 523214442 is about 805.7987221810.

Adding to 523214442 its reverse (244412325), we get a palindrome (767626767).

The spelling of 523214442 in words is "five hundred twenty-three million, two hundred fourteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 1263803 2527606 3791409 7582818 11374227 22748454 29067469 58134938 87202407 174404814 261607221 523214442