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28468585 = 583181379
BaseRepresentation
bin110110010011…
…0010101101001
31222120100120001
41230212111221
524241443320
62454103001
7463656535
oct154462551
958510501
1028468585
1115084962
12964aa61
135b89c22
143ad0bc5
15277520a
hex1b26569

28468585 has 16 divisors (see below), whose sum is σ = 34856640. Its totient is φ = 22317120.

The previous prime is 28468553. The next prime is 28468589. The reversal of 28468585 is 58586482.

It is not a de Polignac number, because 28468585 - 25 = 28468553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28468589) 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 15 ways as a sum of consecutive naturals, for example, 74926 + ... + 75304.

It is an arithmetic number, because the mean of its divisors is an integer number (2178540).

Almost surely, 228468585 is an apocalyptic number.

It is an amenable number.

28468585 is a deficient number, since it is larger than the sum of its proper divisors (6388055).

28468585 is a wasteful number, since it uses less digits than its factorization.

28468585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 614400, while the sum is 46.

The square root of 28468585 is about 5335.5960304356. The cubic root of 28468585 is about 305.3434632971.

The spelling of 28468585 in words is "twenty-eight million, four hundred sixty-eight thousand, five hundred eighty-five".

Divisors: 1 5 83 181 379 415 905 1895 15023 31457 68599 75115 157285 342995 5693717 28468585