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53015129 = 173118537
BaseRepresentation
bin1100101000111…
…1001001011001
310200202110002022
43022033021121
5102032441004
65132144225
71212423026
oct312171131
9120673068
1053015129
1127a20062
1215908075
13aca28cb
14708054d
1549c32be
hex328f259

53015129 has 4 divisors (see below), whose sum is σ = 56133684. Its totient is φ = 49896576.

The previous prime is 53015119. The next prime is 53015141. The reversal of 53015129 is 92151035.

53015129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92151035 = 518430207.

It can be written as a sum of positive squares in 2 ways, for example, as 45589504 + 7425625 = 6752^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 53015129 - 24 = 53015113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53015098 and 53015107.

It is not an unprimeable number, because it can be changed into a prime (53015119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559252 + ... + 1559285.

It is an arithmetic number, because the mean of its divisors is an integer number (14033421).

Almost surely, 253015129 is an apocalyptic number.

It is an amenable number.

53015129 is a deficient number, since it is larger than the sum of its proper divisors (3118555).

53015129 is a wasteful number, since it uses less digits than its factorization.

53015129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118554.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 53015129 is about 7281.1488791262. The cubic root of 53015129 is about 375.6643134351.

The spelling of 53015129 in words is "fifty-three million, fifteen thousand, one hundred twenty-nine".

Divisors: 1 17 3118537 53015129