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28367 = 191493
BaseRepresentation
bin110111011001111
31102220122
412323033
51401432
6335155
7145463
oct67317
942818
1028367
111a349
12144bb
13cbb1
14a4a3
158612
hex6ecf

28367 has 4 divisors (see below), whose sum is σ = 29880. Its totient is φ = 26856.

The previous prime is 28351. The next prime is 28387. The reversal of 28367 is 76382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28367 - 24 = 28351 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728 + ... + 765.

It is an arithmetic number, because the mean of its divisors is an integer number (7470).

228367 is an apocalyptic number.

28367 is a deficient number, since it is larger than the sum of its proper divisors (1513).

28367 is a wasteful number, since it uses less digits than its factorization.

28367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its digits is 2016, while the sum is 26.

The square root of 28367 is about 168.4250575182. The cubic root of 28367 is about 30.4979842796.

The spelling of 28367 in words is "twenty-eight thousand, three hundred sixty-seven".

Divisors: 1 19 1493 28367