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22052289 = 371139293
BaseRepresentation
bin101010000011…
…1110111000001
31112111101001110
41110013313001
521121133124
62104353533
7355304250
oct124076701
945441043
1022052289
11114a2236
1274758a9
1347515bc
142d00797
151e09029
hex1507dc1

22052289 has 16 divisors (see below), whose sum is σ = 33904512. Its totient is φ = 12488448.

The previous prime is 22052237. The next prime is 22052299. The reversal of 22052289 is 98225022.

It is not a de Polignac number, because 22052289 - 27 = 22052161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22052299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2274 + ... + 7019.

It is an arithmetic number, because the mean of its divisors is an integer number (2119032).

Almost surely, 222052289 is an apocalyptic number.

It is an amenable number.

22052289 is a deficient number, since it is larger than the sum of its proper divisors (11852223).

22052289 is a wasteful number, since it uses less digits than its factorization.

22052289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 22052289 is about 4695.9864778340. The cubic root of 22052289 is about 280.4257511100.

The spelling of 22052289 in words is "twenty-two million, fifty-two thousand, two hundred eighty-nine".

Divisors: 1 3 7 21 113 339 791 2373 9293 27879 65051 195153 1050109 3150327 7350763 22052289