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52839155 = 510567831
BaseRepresentation
bin1100100110010…
…0001011110011
310200102111200202
43021210023303
5102011323110
65124305415
71211061005
oct311441363
9120374622
1052839155
112790a926
121584226b
13ac40795
147036375
15498b0a5
hex32642f3

52839155 has 4 divisors (see below), whose sum is σ = 63406992. Its totient is φ = 42271320.

The previous prime is 52839151. The next prime is 52839169. The reversal of 52839155 is 55193825.

52839155 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 not a de Polignac number, because 52839155 - 22 = 52839151 is a prime.

It is a super-2 number, since 2×528391552 = 5583952602228050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52839151) 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, 5283911 + ... + 5283920.

It is an arithmetic number, because the mean of its divisors is an integer number (15851748).

Almost surely, 252839155 is an apocalyptic number.

52839155 is a deficient number, since it is larger than the sum of its proper divisors (10567837).

52839155 is a wasteful number, since it uses less digits than its factorization.

52839155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10567836.

The product of its digits is 54000, while the sum is 38.

The square root of 52839155 is about 7269.0546152853. The cubic root of 52839155 is about 375.2482030918.

The spelling of 52839155 in words is "fifty-two million, eight hundred thirty-nine thousand, one hundred fifty-five".

Divisors: 1 5 10567831 52839155