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53164231 = 151352081
BaseRepresentation
bin1100101011001…
…1100011000111
310201001000121121
43022303203013
5102102223411
65135254411
71213613521
oct312634307
9121030547
1053164231
112801208a
121597a407
13b025733
1470bca11
154a02571
hex32b38c7

53164231 has 4 divisors (see below), whose sum is σ = 53516464. Its totient is φ = 52812000.

The previous prime is 53164207. The next prime is 53164259. The reversal of 53164231 is 13246135.

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 53164231 - 27 = 53164103 is a prime.

It is a super-2 number, since 2×531642312 = 5652870915642722, 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 = 53164196 and 53164205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53164291) 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, 175890 + ... + 176191.

It is an arithmetic number, because the mean of its divisors is an integer number (13379116).

Almost surely, 253164231 is an apocalyptic number.

53164231 is a deficient number, since it is larger than the sum of its proper divisors (352233).

53164231 is a wasteful number, since it uses less digits than its factorization.

53164231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352232.

The product of its digits is 2160, while the sum is 25.

The square root of 53164231 is about 7291.3805962931. The cubic root of 53164231 is about 376.0161618789.

The spelling of 53164231 in words is "fifty-three million, one hundred sixty-four thousand, two hundred thirty-one".

Divisors: 1 151 352081 53164231