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28895159 is a prime number
BaseRepresentation
bin110111000111…
…0011110110111
32000101000201002
41232032132313
524344121114
62511153515
7500414306
oct156163667
960330632
1028895159
11153463a7
12981589b
135ca9137
143ba243d
15280b7de
hex1b8e7b7

28895159 has 2 divisors, whose sum is σ = 28895160. Its totient is φ = 28895158.

The previous prime is 28895129. The next prime is 28895179. The reversal of 28895159 is 95159882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28895159 - 224 = 12117943 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28895129) by changing a digit.

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 as a sum of consecutive naturals, namely, 14447579 + 14447580.

It is an arithmetic number, because the mean of its divisors is an integer number (14447580).

Almost surely, 228895159 is an apocalyptic number.

28895159 is a deficient number, since it is larger than the sum of its proper divisors (1).

28895159 is an equidigital number, since it uses as much as digits as its factorization.

28895159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 47.

The square root of 28895159 is about 5375.4217508955. The cubic root of 28895159 is about 306.8610001453.

The spelling of 28895159 in words is "twenty-eight million, eight hundred ninety-five thousand, one hundred fifty-nine".