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2989077221 = 13727316271
BaseRepresentation
bin1011001000101001…
…1011001011100101
321201022110212002202
42302022123023211
522110200432341
61212334144245
7134033510564
oct26212331345
97638425082
102989077221
1112a428aa59
126b5052085
1338835b960
14204da1bdb
1512763779b
hexb229b2e5

2989077221 has 8 divisors (see below), whose sum is σ = 3223444224. Its totient is φ = 2755344240.

The previous prime is 2989077197. The next prime is 2989077233. The reversal of 2989077221 is 1227709892.

2989077221 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 a de Polignac number, because none of the positive numbers 2k-2989077221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989077251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148685 + ... + 167586.

It is an arithmetic number, because the mean of its divisors is an integer number (402930528).

Almost surely, 22989077221 is an apocalyptic number.

It is an amenable number.

2989077221 is a deficient number, since it is larger than the sum of its proper divisors (234367003).

2989077221 is a wasteful number, since it uses less digits than its factorization.

2989077221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317011.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 2989077221 is about 54672.4539507785. The cubic root of 2989077221 is about 1440.4970668582.

The spelling of 2989077221 in words is "two billion, nine hundred eighty-nine million, seventy-seven thousand, two hundred twenty-one".

Divisors: 1 13 727 9451 316271 4111523 229929017 2989077221