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22130185 = 5711471223
BaseRepresentation
bin101010001101…
…0111000001001
31112122022220111
41110122320021
521131131220
62110154321
7356050330
oct124327011
945568814
1022130185
1111545810
1274b29a1
13477abac
142d20d17
151e2215a
hex151ae09

22130185 has 32 divisors (see below), whose sum is σ = 33841152. Its totient is φ = 13490880.

The previous prime is 22130179. The next prime is 22130221. The reversal of 22130185 is 58103122.

It is not a de Polignac number, because 22130185 - 23 = 22130177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 17484 + ... + 18706.

It is an arithmetic number, because the mean of its divisors is an integer number (1057536).

Almost surely, 222130185 is an apocalyptic number.

It is an amenable number.

22130185 is a deficient number, since it is larger than the sum of its proper divisors (11710967).

22130185 is a wasteful number, since it uses less digits than its factorization.

22130185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 22130185 is about 4704.2730575510. The cubic root of 22130185 is about 280.7555486883.

The spelling of 22130185 in words is "twenty-two million, one hundred thirty thousand, one hundred eighty-five".

Divisors: 1 5 7 11 35 47 55 77 235 329 385 517 1223 1645 2585 3619 6115 8561 13453 18095 42805 57481 67265 94171 287405 402367 470855 632291 2011835 3161455 4426037 22130185