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53342013 = 317780671
BaseRepresentation
bin1100101101111…
…0111100111101
310201101001111010
43023132330331
5102123421023
65143145433
71215254034
oct313367475
9121331433
1053342013
112812370a
1215a45279
13b08862a
14712771b
154a3a093
hex32def3d

53342013 has 4 divisors (see below), whose sum is σ = 71122688. Its totient is φ = 35561340.

The previous prime is 53341997. The next prime is 53342017. The reversal of 53342013 is 31024335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53342013 - 24 = 53341997 is a prime.

It is a super-3 number, since 3×533420133 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53342017) 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, 8890333 + ... + 8890338.

It is an arithmetic number, because the mean of its divisors is an integer number (17780672).

Almost surely, 253342013 is an apocalyptic number.

It is an amenable number.

53342013 is a deficient number, since it is larger than the sum of its proper divisors (17780675).

53342013 is a wasteful number, since it uses less digits than its factorization.

53342013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17780674.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 53342013 is about 7303.5616653794. The cubic root of 53342013 is about 376.4348301424.

Adding to 53342013 its reverse (31024335), we get a palindrome (84366348).

The spelling of 53342013 in words is "fifty-three million, three hundred forty-two thousand, thirteen".

Divisors: 1 3 17780671 53342013