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9022989 = 310728109
BaseRepresentation
bin100010011010…
…111000001101
3121222102012210
4202122320031
54302213424
6521221033
7136460043
oct42327015
917872183
109022989
115103118
123031779
131b3bc61
1412ac393
15bd3729
hex89ae0d

9022989 has 8 divisors (see below), whose sum is σ = 12143520. Its totient is φ = 5958896.

The previous prime is 9022987. The next prime is 9022997. The reversal of 9022989 is 9892209.

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 9022989 - 21 = 9022987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9022987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13734 + ... + 14375.

It is an arithmetic number, because the mean of its divisors is an integer number (1517940).

Almost surely, 29022989 is an apocalyptic number.

It is an amenable number.

9022989 is a deficient number, since it is larger than the sum of its proper divisors (3120531).

9022989 is a wasteful number, since it uses less digits than its factorization.

9022989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28219.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 9022989 is about 3003.8290563879. The cubic root of 9022989 is about 208.1853393031.

It can be divided in two parts, 9022 and 989, that added together give a triangular number (10011 = T141).

The spelling of 9022989 in words is "nine million, twenty-two thousand, nine hundred eighty-nine".

Divisors: 1 3 107 321 28109 84327 3007663 9022989