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52889287 = 115878191
BaseRepresentation
bin1100100111000…
…0011011000111
310200112001110111
43021300123013
5102014424122
65125333451
71211360113
oct311603307
9120461414
1052889287
1127944560
1215867287
13ac5a549
14704a743
15499ad77
hex32706c7

52889287 has 8 divisors (see below), whose sum is σ = 57802752. Its totient is φ = 47993400.

The previous prime is 52889281. The next prime is 52889299. The reversal of 52889287 is 78298825.

52889287 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 a cyclic number.

It is not a de Polignac number, because 52889287 - 23 = 52889279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52889287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52889281) 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, 2362 + ... + 10552.

It is an arithmetic number, because the mean of its divisors is an integer number (7225344).

Almost surely, 252889287 is an apocalyptic number.

52889287 is a deficient number, since it is larger than the sum of its proper divisors (4913465).

52889287 is a wasteful number, since it uses less digits than its factorization.

52889287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789.

The product of its digits is 645120, while the sum is 49.

The square root of 52889287 is about 7272.5021141283. The cubic root of 52889287 is about 375.3668398405.

The spelling of 52889287 in words is "fifty-two million, eight hundred eighty-nine thousand, two hundred eighty-seven".

Divisors: 1 11 587 6457 8191 90101 4808117 52889287