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28675843 = 735911411
BaseRepresentation
bin110110101100…
…0111100000011
31222221212212021
41231120330003
524320111333
62502342311
7465512020
oct155307403
958855767
1028675843
1115206649
12972a997
135c30371
143b46547
1527b682d
hex1b58f03

28675843 has 8 divisors (see below), whose sum is σ = 32866560. Its totient is φ = 24508680.

The previous prime is 28675841. The next prime is 28675853. The reversal of 28675843 is 34857682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28675843 - 21 = 28675841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28675843.

It is not an unprimeable number, because it can be changed into a prime (28675841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3193 + ... + 8218.

It is an arithmetic number, because the mean of its divisors is an integer number (4108320).

Almost surely, 228675843 is an apocalyptic number.

28675843 is a deficient number, since it is larger than the sum of its proper divisors (4190717).

28675843 is a wasteful number, since it uses less digits than its factorization.

28675843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777.

The product of its digits is 322560, while the sum is 43.

The square root of 28675843 is about 5354.9830065090. The cubic root of 28675843 is about 306.0826631017.

The spelling of 28675843 in words is "twenty-eight million, six hundred seventy-five thousand, eight hundred forty-three".

Divisors: 1 7 359 2513 11411 79877 4096549 28675843