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286109204 = 22149480049
BaseRepresentation
bin10001000011011…
…010111000010100
3201221100212001012
4101003122320110
51041220443304
644220151352
710042613423
oct2103327024
9657325035
10286109204
11137557097
127b998558
13473762b4
1429dd92ba
151a1b816e
hex110dae14

286109204 has 12 divisors (see below), whose sum is σ = 504052500. Its totient is φ = 142094208.

The previous prime is 286109203. The next prime is 286109249. The reversal of 286109204 is 402901682.

286109204 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 101203600 + 184905604 = 10060^2 + 13598^2 .

It is a super-2 number, since 2×2861092042 = 163716953227027232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286109203) 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, 239429 + ... + 240620.

It is an arithmetic number, because the mean of its divisors is an integer number (42004375).

Almost surely, 2286109204 is an apocalyptic number.

It is an amenable number.

286109204 is a deficient number, since it is larger than the sum of its proper divisors (217943296).

286109204 is a wasteful number, since it uses less digits than its factorization.

286109204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480202 (or 480200 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 286109204 is about 16914.7629010873. The cubic root of 286109204 is about 658.9370739006.

The spelling of 286109204 in words is "two hundred eighty-six million, one hundred nine thousand, two hundred four".

Divisors: 1 2 4 149 298 596 480049 960098 1920196 71527301 143054602 286109204