28179 has 12 divisors (see below), whose sum is σ = 42432. Its totient is φ = 18000.
The previous prime is 28163. The next prime is 28181. The reversal of 28179 is 97182.
28179 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 28179 - 24 = 28163 is a prime.
It is a nialpdrome in base 13.
It is not an unprimeable number, because it can be changed into a prime (28109) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 329.
It is an arithmetic number, because the mean of its divisors is an integer number (3536).
228179 is an apocalyptic number.
28179 is a deficient number, since it is larger than the sum of its proper divisors (14253).
28179 is a wasteful number, since it uses less digits than its factorization.
28179 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 138 (or 135 counting only the distinct ones).
The product of its digits is 1008, while the sum is 27.
The square root of 28179 is about 167.8660180025. The cubic root of 28179 is about 30.4304605812.
The spelling of 28179 in words is "twenty-eight thousand, one hundred seventy-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •