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889285209 = 31571888079
BaseRepresentation
bin110101000000010…
…110101001011001
32021222100100222020
4311000112221121
53310124111314
6224124245053
731015541151
oct6500265131
92258310866
10889285209
11416a8415a
122099a0789
13112314687
148616b761
1553111da9
hex35016a59

889285209 has 8 divisors (see below), whose sum is σ = 1193266560. Its totient is φ = 589080336.

The previous prime is 889285169. The next prime is 889285213. The reversal of 889285209 is 902582988.

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

It is not a de Polignac number, because 889285209 - 27 = 889285081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (889285259) 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, 943569 + ... + 944510.

It is an arithmetic number, because the mean of its divisors is an integer number (149158320).

Almost surely, 2889285209 is an apocalyptic number.

It is an amenable number.

889285209 is a deficient number, since it is larger than the sum of its proper divisors (303981351).

889285209 is a wasteful number, since it uses less digits than its factorization.

889285209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888239.

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 889285209 is about 29820.8854496308. The cubic root of 889285209 is about 961.6425904335.

The spelling of 889285209 in words is "eight hundred eighty-nine million, two hundred eighty-five thousand, two hundred nine".

Divisors: 1 3 157 471 1888079 5664237 296428403 889285209