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523507452 = 2231317307643
BaseRepresentation
bin11111001101000…
…001011011111100
31100111001221012220
4133031001123330
52033004214302
6123540325340
715654511536
oct3715013374
91314057186
10523507452
11249562996
121273a3850
13845c5b30
144d754856
1530e5d4bc
hex1f3416fc

523507452 has 96 divisors (see below), whose sum is σ = 1399571712. Its totient is φ = 150875136.

The previous prime is 523507421. The next prime is 523507459. The reversal of 523507452 is 254705325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523507459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813843 + ... + 814485.

It is an arithmetic number, because the mean of its divisors is an integer number (14578872).

Almost surely, 2523507452 is an apocalyptic number.

523507452 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523507452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699785856).

523507452 is an abundant number, since it is smaller than the sum of its proper divisors (876064260).

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

523507452 is a wasteful number, since it uses less digits than its factorization.

523507452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 985 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The square root of 523507452 is about 22880.2852254949. The cubic root of 523507452 is about 805.9491149604.

The spelling of 523507452 in words is "five hundred twenty-three million, five hundred seven thousand, four hundred fifty-two".