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523425031 = 2918199719
BaseRepresentation
bin11111001100101…
…101010100000111
31100110220202011021
4133030231110013
52032444100111
6123534452011
715654016333
oct3714552407
91313822137
10523425031
11249506a78
12127364007
138459746c
144d7327c3
1530e43d71
hex1f32d507

523425031 has 8 divisors (see below), whose sum is σ = 544471200. Its totient is φ = 502578720.

The previous prime is 523425029. The next prime is 523425037. The reversal of 523425031 is 130524325.

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

It is a cyclic number.

It is not a de Polignac number, because 523425031 - 21 = 523425029 is a prime.

It is a super-2 number, since 2×5234250312 = 547947526154701922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523424987 and 523425005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523425037) 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, 44611 + ... + 55108.

It is an arithmetic number, because the mean of its divisors is an integer number (68058900).

Almost surely, 2523425031 is an apocalyptic number.

523425031 is a deficient number, since it is larger than the sum of its proper divisors (21046169).

523425031 is a wasteful number, since it uses less digits than its factorization.

523425031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99929.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 523425031 is about 22878.4840188331. The cubic root of 523425031 is about 805.9068165377.

Adding to 523425031 its reverse (130524325), we get a palindrome (653949356).

The spelling of 523425031 in words is "five hundred twenty-three million, four hundred twenty-five thousand, thirty-one".

Divisors: 1 29 181 5249 99719 2891851 18049139 523425031