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228343265 = 5181252313
BaseRepresentation
bin11011001110000…
…11110111100001
3120220200001001222
431213003313201
5431423441030
634354104425
75441612543
oct1547036741
9526601058
10228343265
11107991747
126457b115
13383cc177
142247d693
15150a73e5
hexd9c3de1

228343265 has 8 divisors (see below), whose sum is σ = 275526888. Its totient is φ = 181664640.

The previous prime is 228343261. The next prime is 228343267. The reversal of 228343265 is 562343822.

It can be written as a sum of positive squares in 4 ways, for example, as 13808656 + 214534609 = 3716^2 + 14647^2 .

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

It is not a de Polignac number, because 228343265 - 22 = 228343261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228343261) 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, 125252 + ... + 127061.

It is an arithmetic number, because the mean of its divisors is an integer number (34440861).

Almost surely, 2228343265 is an apocalyptic number.

It is an amenable number.

228343265 is a deficient number, since it is larger than the sum of its proper divisors (47183623).

228343265 is a wasteful number, since it uses less digits than its factorization.

228343265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252499.

The product of its digits is 69120, while the sum is 35.

The square root of 228343265 is about 15111.0312354915. The cubic root of 228343265 is about 611.2179062639.

The spelling of 228343265 in words is "two hundred twenty-eight million, three hundred forty-three thousand, two hundred sixty-five".

Divisors: 1 5 181 905 252313 1261565 45668653 228343265