Search a number
-
+
28341133 = 280310111
BaseRepresentation
bin110110000011…
…1001110001101
31222022212201121
41230013032031
524223404013
62451240541
7462616132
oct154071615
958285647
1028341133
1114aa8127
1295a9151
135b43c02
143a9a589
15274c58d
hex1b0738d

28341133 has 4 divisors (see below), whose sum is σ = 28354048. Its totient is φ = 28328220.

The previous prime is 28341113. The next prime is 28341233. The reversal of 28341133 is 33114382.

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 28341133 - 25 = 28341101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28341098 and 28341107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341113) 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 3 ways as a sum of consecutive naturals, for example, 2253 + ... + 7858.

It is an arithmetic number, because the mean of its divisors is an integer number (7088512).

Almost surely, 228341133 is an apocalyptic number.

It is an amenable number.

28341133 is a deficient number, since it is larger than the sum of its proper divisors (12915).

28341133 is a wasteful number, since it uses less digits than its factorization.

28341133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914.

The product of its digits is 1728, while the sum is 25.

The square root of 28341133 is about 5323.6390749186. The cubic root of 28341133 is about 304.8871140065.

The spelling of 28341133 in words is "twenty-eight million, three hundred forty-one thousand, one hundred thirty-three".

Divisors: 1 2803 10111 28341133