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53928071 = 217924749
BaseRepresentation
bin1100110110111…
…0000010000111
310202110211101222
43031232002013
5102301144241
65203510555
71223244461
oct315560207
9122424358
1053928071
1128493a5a
121608845b
13b232302
14723b131
154b03a4b
hex336e087

53928071 has 4 divisors (see below), whose sum is σ = 53955000. Its totient is φ = 53901144.

The previous prime is 53928059. The next prime is 53928157. The reversal of 53928071 is 17082935.

53928071 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 is a cyclic number.

It is not a de Polignac number, because 53928071 - 222 = 49733767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53928001) 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, 10196 + ... + 14553.

It is an arithmetic number, because the mean of its divisors is an integer number (13488750).

Almost surely, 253928071 is an apocalyptic number.

53928071 is a deficient number, since it is larger than the sum of its proper divisors (26929).

53928071 is a wasteful number, since it uses less digits than its factorization.

53928071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26928.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 53928071 is about 7343.5734489416. The cubic root of 53928071 is about 377.8084165814.

The spelling of 53928071 in words is "fifty-three million, nine hundred twenty-eight thousand, seventy-one".

Divisors: 1 2179 24749 53928071