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523164231 = 3319376453
BaseRepresentation
bin11111001011101…
…101101001000111
31100110102111102000
4133023231221013
52032412223411
6123525120343
715651552102
oct3713555107
91313374360
10523164231
11249349037
121272590b3
1384505845
144d6a5739
1530de1956
hex1f2eda47

523164231 has 8 divisors (see below), whose sum is σ = 775058160. Its totient is φ = 348776136.

The previous prime is 523164199. The next prime is 523164241. The reversal of 523164231 is 132461325.

523164231 is a `hidden beast` number, since 5 + 231 + 6 + 423 + 1 = 666.

It is not a de Polignac number, because 523164231 - 25 = 523164199 is a prime.

It is a super-2 number, since 2×5231642312 = 547401625195642722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 19376453 = 523164231 / (5 + 2 + 3 + 1 + 6 + 4 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 523164195 and 523164204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523164241) 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, 9688200 + ... + 9688253.

It is an arithmetic number, because the mean of its divisors is an integer number (96882270).

Almost surely, 2523164231 is an apocalyptic number.

523164231 is a deficient number, since it is larger than the sum of its proper divisors (251893929).

523164231 is a wasteful number, since it uses less digits than its factorization.

523164231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19376462 (or 19376456 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 523164231 is about 22872.7836303324. The cubic root of 523164231 is about 805.7729448255.

The spelling of 523164231 in words is "five hundred twenty-three million, one hundred sixty-four thousand, two hundred thirty-one".

Divisors: 1 3 9 27 19376453 58129359 174388077 523164231