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28823022 = 2322117589
BaseRepresentation
bin110110111110…
…0110111101110
32000020100202100
41231330313232
524334314042
62505435530
7466664064
oct155746756
960210670
1028823022
11152a7188
12979bba6
135c82357
143b84034
1527e524c
hex1b7cdee

28823022 has 24 divisors (see below), whose sum is σ = 62754120. Its totient is φ = 9560880.

The previous prime is 28823021. The next prime is 28823051. The reversal of 28823022 is 22032882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28823021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (2614755).

Almost surely, 228823022 is an apocalyptic number.

28823022 is an abundant number, since it is smaller than the sum of its proper divisors (33931098).

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

28823022 is a wasteful number, since it uses less digits than its factorization.

28823022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7808 (or 7805 counting only the distinct ones).

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

The square root of 28823022 is about 5368.7076657237. The cubic root of 28823022 is about 306.6054270175.

The spelling of 28823022 in words is "twenty-eight million, eight hundred twenty-three thousand, twenty-two".

Divisors: 1 2 3 6 9 18 211 422 633 1266 1899 3798 7589 15178 22767 45534 68301 136602 1601279 3202558 4803837 9607674 14411511 28823022