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53013113 = 77368581
BaseRepresentation
bin1100101000111…
…0101001111001
310200202100022122
43022032221321
5102032404423
65132131025
71212414116
oct312165171
9120670278
1053013113
1127a1959a
1215906a75
13aca1a0a
14707d90d
1549c28c8
hex328ea79

53013113 has 4 divisors (see below), whose sum is σ = 53082468. Its totient is φ = 52943760.

The previous prime is 53013101. The next prime is 53013127. The reversal of 53013113 is 31131035.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7139584 + 45873529 = 2672^2 + 6773^2 .

It is a cyclic number.

It is not a de Polignac number, because 53013113 - 214 = 52996729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53013091 and 53013100.

It is not an unprimeable number, because it can be changed into a prime (53013143) 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, 33518 + ... + 35063.

It is an arithmetic number, because the mean of its divisors is an integer number (13270617).

Almost surely, 253013113 is an apocalyptic number.

It is an amenable number.

53013113 is a deficient number, since it is larger than the sum of its proper divisors (69355).

53013113 is an equidigital number, since it uses as much as digits as its factorization.

53013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69354.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 53013113 is about 7281.0104381191. The cubic root of 53013113 is about 375.6595515941.

Adding to 53013113 its reverse (31131035), we get a palindrome (84144148).

The spelling of 53013113 in words is "fifty-three million, thirteen thousand, one hundred thirteen".

Divisors: 1 773 68581 53013113