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28179041 = 112561731
BaseRepresentation
bin110101101111…
…1101001100001
31222000122101012
41223133221201
524203212131
62443550305
7461342432
oct153375141
958018335
1028179041
11149a7370
12952b395
135ab81b7
143a57489
15271952b
hex1adfa61

28179041 has 4 divisors (see below), whose sum is σ = 30740784. Its totient is φ = 25617300.

The previous prime is 28179037. The next prime is 28179059. The reversal of 28179041 is 14097182.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28179041 - 22 = 28179037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28178989 and 28179007.

It is not an unprimeable number, because it can be changed into a prime (28176041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280855 + ... + 1280876.

It is an arithmetic number, because the mean of its divisors is an integer number (7685196).

Almost surely, 228179041 is an apocalyptic number.

It is an amenable number.

28179041 is a deficient number, since it is larger than the sum of its proper divisors (2561743).

28179041 is a wasteful number, since it uses less digits than its factorization.

28179041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561742.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 28179041 is about 5308.3934481159. The cubic root of 28179041 is about 304.3047533978.

The spelling of 28179041 in words is "twenty-eight million, one hundred seventy-nine thousand, forty-one".

Divisors: 1 11 2561731 28179041