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53513789 = 726892843
BaseRepresentation
bin1100110000100…
…0111000111101
310201200210010012
43030020320331
5102144420124
65150553005
71216600610
oct314107075
9121623105
1053513789
112823077a
1215b08765
13b118884
147170177
154a70e0e
hex3308e3d

53513789 has 8 divisors (see below), whose sum is σ = 61202880. Its totient is φ = 45835776.

The previous prime is 53513783. The next prime is 53513791. The reversal of 53513789 is 98731535.

It is a happy number.

53513789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53513789 - 216 = 53448253 is a prime.

It is a super-2 number, since 2×535137892 = 5727451226273042, which contains 22 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 (53513783) 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 7 ways as a sum of consecutive naturals, for example, 17402 + ... + 20244.

It is an arithmetic number, because the mean of its divisors is an integer number (7650360).

Almost surely, 253513789 is an apocalyptic number.

It is an amenable number.

53513789 is a deficient number, since it is larger than the sum of its proper divisors (7689091).

53513789 is a wasteful number, since it uses less digits than its factorization.

53513789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539.

The product of its digits is 113400, while the sum is 41.

The square root of 53513789 is about 7315.3119550707. The cubic root of 53513789 is about 376.8384718458.

The spelling of 53513789 in words is "fifty-three million, five hundred thirteen thousand, seven hundred eighty-nine".

Divisors: 1 7 2689 2843 18823 19901 7644827 53513789