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33028038 = 23216311257
BaseRepresentation
bin111110111111…
…1011111000110
32022010222221200
41331333133012
531423344123
63135523330
7550506441
oct175773706
968128850
1033028038
11177094aa
12b089546
136ac5324
14455a658
152d76143
hex1f7f7c6

33028038 has 24 divisors (see below), whose sum is σ = 72006168. Its totient is φ = 10940832.

The previous prime is 33028033. The next prime is 33028049. The reversal of 33028038 is 83082033.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33028033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2695 + ... + 8562.

It is an arithmetic number, because the mean of its divisors is an integer number (3000257).

Almost surely, 233028038 is an apocalyptic number.

33028038 is an abundant number, since it is smaller than the sum of its proper divisors (38978130).

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

33028038 is a wasteful number, since it uses less digits than its factorization.

33028038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11428 (or 11425 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 33028038 is about 5747.0025230550. The cubic root of 33028038 is about 320.8442485445.

The spelling of 33028038 in words is "thirty-three million, twenty-eight thousand, thirty-eight".

Divisors: 1 2 3 6 9 18 163 326 489 978 1467 2934 11257 22514 33771 67542 101313 202626 1834891 3669782 5504673 11009346 16514019 33028038