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28364343 = 371379859
BaseRepresentation
bin110110000110…
…0111000110111
31222101001120020
41230030320313
524230124333
62451540223
7463043610
oct154147067
958331506
1028364343
1115013607
1295ba673
135b51647
143aa4c07
1527543b3
hex1b0ce37

28364343 has 16 divisors (see below), whose sum is σ = 43541760. Its totient is φ = 16088256.

The previous prime is 28364339. The next prime is 28364353. The reversal of 28364343 is 34346382.

It is not a de Polignac number, because 28364343 - 22 = 28364339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28364353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053 + ... + 7806.

It is an arithmetic number, because the mean of its divisors is an integer number (2721360).

Almost surely, 228364343 is an apocalyptic number.

28364343 is a deficient number, since it is larger than the sum of its proper divisors (15177417).

28364343 is a wasteful number, since it uses less digits than its factorization.

28364343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006.

The product of its digits is 41472, while the sum is 33.

The square root of 28364343 is about 5325.8185286395. The cubic root of 28364343 is about 304.9703205018.

The spelling of 28364343 in words is "twenty-eight million, three hundred sixty-four thousand, three hundred forty-three".

Divisors: 1 3 7 21 137 411 959 2877 9859 29577 69013 207039 1350683 4052049 9454781 28364343