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228395205 = 32515113359
BaseRepresentation
bin11011001110100…
…00100011000101
3120220202200022200
431213100203011
5431432121310
634355145113
75442220143
oct1547204305
9526680280
10228395205
11107a17775
12645a5199
13384199bc
1422494593
15150b79c0
hexd9d08c5

228395205 has 24 divisors (see below), whose sum is σ = 396264960. Its totient is φ = 121693920.

The previous prime is 228395183. The next prime is 228395207. The reversal of 228395205 is 502593822.

It is not a de Polignac number, because 228395205 - 29 = 228394693 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 228395205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228395207) 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 23 ways as a sum of consecutive naturals, for example, 66316 + ... + 69674.

It is an arithmetic number, because the mean of its divisors is an integer number (16511040).

Almost surely, 2228395205 is an apocalyptic number.

It is an amenable number.

228395205 is a deficient number, since it is larger than the sum of its proper divisors (167869755).

228395205 is a wasteful number, since it uses less digits than its factorization.

228395205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881 (or 4878 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 228395205 is about 15112.7497497974. The cubic root of 228395205 is about 611.2642462210.

The spelling of 228395205 in words is "two hundred twenty-eight million, three hundred ninety-five thousand, two hundred five".

Divisors: 1 3 5 9 15 45 1511 3359 4533 7555 10077 13599 16795 22665 30231 50385 67995 151155 5075449 15226347 25377245 45679041 76131735 228395205