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53080513 = 137387449
BaseRepresentation
bin1100101001111…
…1000111000001
310200212202202221
43022133013001
5102042034023
65133411041
71213114453
oct312370701
9120782687
1053080513
1127a651a2
1215939a81
13acc65b5
14709a2d3
1549d785d
hex329f1c1

53080513 has 4 divisors (see below), whose sum is σ = 53468100. Its totient is φ = 52692928.

The previous prime is 53080487. The next prime is 53080529. The reversal of 53080513 is 31508035.

It is a happy number.

53080513 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.

It can be written as a sum of positive squares in 2 ways, for example, as 15233409 + 37847104 = 3903^2 + 6152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53080513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53080213) 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, 193588 + ... + 193861.

It is an arithmetic number, because the mean of its divisors is an integer number (13367025).

Almost surely, 253080513 is an apocalyptic number.

It is an amenable number.

53080513 is a deficient number, since it is larger than the sum of its proper divisors (387587).

53080513 is a wasteful number, since it uses less digits than its factorization.

53080513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387586.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 53080513 is about 7285.6374463735. The cubic root of 53080513 is about 375.8186866311.

Adding to 53080513 its reverse (31508035), we get a palindrome (84588548).

The spelling of 53080513 in words is "fifty-three million, eighty thousand, five hundred thirteen".

Divisors: 1 137 387449 53080513