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22130868 = 2234394201
BaseRepresentation
bin101010001101…
…1000010110100
31112122100211210
41110123002310
521131141433
62110201420
7356052324
oct124330264
945570753
1022130868
1111546281
1274b3270
13477b2b6
142d21284
151e22463
hex151b0b4

22130868 has 24 divisors (see below), whose sum is σ = 51768640. Its totient is φ = 7358400.

The previous prime is 22130863. The next prime is 22130879. The reversal of 22130868 is 86803122.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130863) 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, 3168 + ... + 7368.

Almost surely, 222130868 is an apocalyptic number.

It is an amenable number.

22130868 is an abundant number, since it is smaller than the sum of its proper divisors (29637772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22130868 is a wasteful number, since it uses less digits than its factorization.

22130868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4645 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22130868 is about 4704.3456505661. The cubic root of 22130868 is about 280.7584369616.

The spelling of 22130868 in words is "twenty-two million, one hundred thirty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 439 878 1317 1756 2634 4201 5268 8402 12603 16804 25206 50412 1844239 3688478 5532717 7376956 11065434 22130868