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28695 = 351913
BaseRepresentation
bin111000000010111
31110100210
413000113
51404240
6340503
7146442
oct70027
943323
1028695
111a617
1214733
13100a4
14a659
158780
hex7017

28695 has 8 divisors (see below), whose sum is σ = 45936. Its totient is φ = 15296.

The previous prime is 28687. The next prime is 28697. The reversal of 28695 is 59682.

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

It is a cyclic number.

It is not a de Polignac number, because 28695 - 23 = 28687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942 + ... + 971.

It is an arithmetic number, because the mean of its divisors is an integer number (5742).

228695 is an apocalyptic number.

28695 is a deficient number, since it is larger than the sum of its proper divisors (17241).

28695 is a wasteful number, since it uses less digits than its factorization.

28695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921.

The product of its digits is 4320, while the sum is 30.

The square root of 28695 is about 169.3959857848. The cubic root of 28695 is about 30.6150807804.

The spelling of 28695 in words is "twenty-eight thousand, six hundred ninety-five".

Divisors: 1 3 5 15 1913 5739 9565 28695