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523031343 = 3393144351
BaseRepresentation
bin11111001011001…
…101001100101111
31100110011202010020
4133023031030233
52032344000333
6123522213223
715650456502
oct3713151457
91313152106
10523031343
1124926820a
121271b4213
138448a203
144d66d139
1530db73b3
hex1f2cd32f

523031343 has 8 divisors (see below), whose sum is σ = 697568256. Its totient is φ = 348591000.

The previous prime is 523031329. The next prime is 523031347. The reversal of 523031343 is 343130325.

It is a happy number.

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

It is not a de Polignac number, because 523031343 - 212 = 523027247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523031347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10383 + ... + 33968.

It is an arithmetic number, because the mean of its divisors is an integer number (87196032).

Almost surely, 2523031343 is an apocalyptic number.

523031343 is a deficient number, since it is larger than the sum of its proper divisors (174536913).

523031343 is a wasteful number, since it uses less digits than its factorization.

523031343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48285.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 523031343 is about 22869.8785086410. The cubic root of 523031343 is about 805.7047147388.

Adding to 523031343 its reverse (343130325), we get a palindrome (866161668).

The spelling of 523031343 in words is "five hundred twenty-three million, thirty-one thousand, three hundred forty-three".

Divisors: 1 3 3931 11793 44351 133053 174343781 523031343