Search a number
-
+
228360173 = 1731916911
BaseRepresentation
bin11011001110001…
…11111111101101
3120220200220021012
431213013333231
5431430011143
634354315005
75442013046
oct1547077755
9526626235
10228360173
111079a3418
1264588a65
1338406a82
14224858cd
15150ac418
hexd9c7fed

228360173 has 8 divisors (see below), whose sum is σ = 230916096. Its totient is φ = 225818800.

The previous prime is 228360161. The next prime is 228360191. The reversal of 228360173 is 371063822.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 228360173 - 214 = 228343789 is a prime.

It is a super-2 number, since 2×2283601732 = 104296737225179858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228360103) 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, 29588 + ... + 36498.

It is an arithmetic number, because the mean of its divisors is an integer number (28864512).

Almost surely, 2228360173 is an apocalyptic number.

It is an amenable number.

228360173 is a deficient number, since it is larger than the sum of its proper divisors (2555923).

228360173 is a wasteful number, since it uses less digits than its factorization.

228360173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 228360173 is about 15111.5906839750. The cubic root of 228360173 is about 611.2329920563.

The spelling of 228360173 in words is "two hundred twenty-eight million, three hundred sixty thousand, one hundred seventy-three".

Divisors: 1 173 191 6911 33043 1195603 1320001 228360173