Search a number
-
+
228369163 = 11160712919
BaseRepresentation
bin11011001110010…
…10001100001011
3120220201100121011
431213022030023
5431430303123
634354424351
75442051211
oct1547121413
9526640534
10228369163
111079aa150
12645920b7
133840aba9
1422488cb1
15150aee0d
hexd9ca30b

228369163 has 8 divisors (see below), whose sum is σ = 249304320. Its totient is φ = 207463080.

The previous prime is 228369133. The next prime is 228369179. The reversal of 228369163 is 361963822.

228369163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-228369163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228369133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11218 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (31163040).

Almost surely, 2228369163 is an apocalyptic number.

228369163 is a deficient number, since it is larger than the sum of its proper divisors (20935157).

228369163 is a wasteful number, since it uses less digits than its factorization.

228369163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537.

The product of its digits is 93312, while the sum is 40.

The square root of 228369163 is about 15111.8881348427. Note that the first 3 decimals coincide. The cubic root of 228369163 is about 611.2410128836.

The spelling of 228369163 in words is "two hundred twenty-eight million, three hundred sixty-nine thousand, one hundred sixty-three".

Divisors: 1 11 1607 12919 17677 142109 20760833 228369163