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989675 = 52311277
BaseRepresentation
bin11110001100111101011
31212021120122
43301213223
5223132200
633113455
711261231
oct3614753
91767518
10989675
11616615
123b888b
1328860b
141ba951
15148385
hexf19eb

989675 has 12 divisors (see below), whose sum is σ = 1267776. Its totient is φ = 765600.

The previous prime is 989671. The next prime is 989687. The reversal of 989675 is 576989.

It is not a de Polignac number, because 989675 - 22 = 989671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (989671) 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 11 ways as a sum of consecutive naturals, for example, 137 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (105648).

2989675 is an apocalyptic number.

989675 is a deficient number, since it is larger than the sum of its proper divisors (278101).

989675 is a wasteful number, since it uses less digits than its factorization.

989675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1313 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 989675 is about 994.8241050558. The cubic root of 989675 is about 99.6546419848.

Subtracting from 989675 its reverse (576989), we obtain a triangular number (412686 = T908).

The spelling of 989675 in words is "nine hundred eighty-nine thousand, six hundred seventy-five".

Divisors: 1 5 25 31 155 775 1277 6385 31925 39587 197935 989675