Search a number
-
+
228349 = 1120759
BaseRepresentation
bin110111101111111101
3102121020101
4313233331
524301344
64521101
71640512
oct675775
9377211
10228349
11146620
12b0191
137cc24
145d309
15479d4
hex37bfd

228349 has 4 divisors (see below), whose sum is σ = 249120. Its totient is φ = 207580.

The previous prime is 228341. The next prime is 228353. The reversal of 228349 is 943822.

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 228349 - 23 = 228341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228341) 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, 10369 + ... + 10390.

It is an arithmetic number, because the mean of its divisors is an integer number (62280).

2228349 is an apocalyptic number.

It is an amenable number.

228349 is a deficient number, since it is larger than the sum of its proper divisors (20771).

228349 is a wasteful number, since it uses less digits than its factorization.

228349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20770.

The product of its digits is 3456, while the sum is 28.

The square root of 228349 is about 477.8587657457. The cubic root of 228349 is about 61.1223023275.

It can be divided in two parts, 2283 and 49, that added together give a palindrome (2332).

The spelling of 228349 in words is "two hundred twenty-eight thousand, three hundred forty-nine".

Divisors: 1 11 20759 228349