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2989568329 = 11271778939
BaseRepresentation
bin1011001000110001…
…0011000101001001
321201100101210202221
42302030103011021
522110312141304
61212352454041
7134040624436
oct26214230511
97640353687
102989568329
1112a4595a30
126b524a321
133884a1357
1420508cb8d
151276d3054
hexb2313149

2989568329 has 4 divisors (see below), whose sum is σ = 3261347280. Its totient is φ = 2717789380.

The previous prime is 2989568317. The next prime is 2989568363. The reversal of 2989568329 is 9238659892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2989568329 - 213 = 2989560137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2989568429) 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, 135889459 + ... + 135889480.

It is an arithmetic number, because the mean of its divisors is an integer number (815336820).

Almost surely, 22989568329 is an apocalyptic number.

It is an amenable number.

2989568329 is a deficient number, since it is larger than the sum of its proper divisors (271778951).

2989568329 is a wasteful number, since it uses less digits than its factorization.

2989568329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271778950.

The product of its digits is 16796160, while the sum is 61.

The square root of 2989568329 is about 54676.9451322950. The cubic root of 2989568329 is about 1440.5759541803.

The spelling of 2989568329 in words is "two billion, nine hundred eighty-nine million, five hundred sixty-eight thousand, three hundred twenty-nine".

Divisors: 1 11 271778939 2989568329