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523050431 = 787664613
BaseRepresentation
bin11111001011010…
…001110110111111
31100110012201022012
4133023101312333
52032400103211
6123522441435
715650566241
oct3713216677
91313181265
10523050431
11249280592
1212720327b
1384495ac7
144d676091
1530dbcd8b
hex1f2d1dbf

523050431 has 4 divisors (see below), whose sum is σ = 523715832. Its totient is φ = 522385032.

The previous prime is 523050421. The next prime is 523050433. The reversal of 523050431 is 134050325.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 523050431 - 214 = 523034047 is a prime.

It is a super-2 number, since 2×5230504312 = 547163506738571522, 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 = 523050397 and 523050406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523050433) 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, 331520 + ... + 333093.

It is an arithmetic number, because the mean of its divisors is an integer number (130928958).

Almost surely, 2523050431 is an apocalyptic number.

523050431 is a deficient number, since it is larger than the sum of its proper divisors (665401).

523050431 is an equidigital number, since it uses as much as digits as its factorization.

523050431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665400.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 523050431 is about 22870.2958223107. The cubic root of 523050431 is about 805.7145160026.

The spelling of 523050431 in words is "five hundred twenty-three million, fifty thousand, four hundred thirty-one".

Divisors: 1 787 664613 523050431