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28044126 = 23211141637
BaseRepresentation
bin110101011111…
…0101101011110
31221202210022100
41222332231132
524134403001
62441025530
7460241205
oct152765536
957683270
1028044126
1114914a70
1294852a6
135a6b976
143a2023c
1526de586
hex1abeb5e

28044126 has 24 divisors (see below), whose sum is σ = 66286584. Its totient is φ = 8498160.

The previous prime is 28044103. The next prime is 28044139. The reversal of 28044126 is 62144082.

It is a self number, because there is not a number n which added to its sum of digits gives 28044126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70621 + ... + 71016.

It is an arithmetic number, because the mean of its divisors is an integer number (2761941).

Almost surely, 228044126 is an apocalyptic number.

28044126 is an abundant number, since it is smaller than the sum of its proper divisors (38242458).

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

28044126 is a wasteful number, since it uses less digits than its factorization.

28044126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141656 (or 141653 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 28044126 is about 5295.6704957918. The cubic root of 28044126 is about 303.8183283768.

The spelling of 28044126 in words is "twenty-eight million, forty-four thousand, one hundred twenty-six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 141637 283274 424911 849822 1274733 1558007 2549466 3116014 4674021 9348042 14022063 28044126