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28829327 = 1923371783
BaseRepresentation
bin110110111111…
…0011010001111
32000020200101212
41231332122033
524340014302
62505525035
7500021342
oct155763217
960220355
1028829327
111530099a
1297a377b
135c85197
143b86459
1527e7052
hex1b7e68f

28829327 has 16 divisors (see below), whose sum is σ = 32540160. Its totient is φ = 25404192.

The previous prime is 28829299. The next prime is 28829357. The reversal of 28829327 is 72392882.

It is a cyclic number.

It is not a de Polignac number, because 28829327 - 220 = 27780751 is a prime.

It is a super-2 number, since 2×288293272 = 1662260190545858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28829357) 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 in 15 ways as a sum of consecutive naturals, for example, 15278 + ... + 17060.

It is an arithmetic number, because the mean of its divisors is an integer number (2033760).

Almost surely, 228829327 is an apocalyptic number.

28829327 is a deficient number, since it is larger than the sum of its proper divisors (3710833).

28829327 is a wasteful number, since it uses less digits than its factorization.

28829327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862.

The product of its digits is 96768, while the sum is 41.

The square root of 28829327 is about 5369.2948326573. The cubic root of 28829327 is about 306.6277819054.

The spelling of 28829327 in words is "twenty-eight million, eight hundred twenty-nine thousand, three hundred twenty-seven".

Divisors: 1 19 23 37 437 703 851 1783 16169 33877 41009 65971 779171 1253449 1517333 28829327