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228642200 = 23521960169
BaseRepresentation
bin11011010000011…
…00110110011000
3120221020020010122
431220030312120
5432013022300
634404332412
75444266223
oct1550146630
9527206118
10228642200
111080762a6
12646a4108
13384a5257
142251a5ba
1515115c85
hexda0cd98

228642200 has 48 divisors (see below), whose sum is σ = 559581000. Its totient is φ = 86641920.

The previous prime is 228642187. The next prime is 228642217. The reversal of 228642200 is 2246822.

It is a super-3 number, since 3×2286422003 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228642200.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26285 + ... + 33884.

Almost surely, 2228642200 is an apocalyptic number.

228642200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228642200 is an abundant number, since it is smaller than the sum of its proper divisors (330938800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228642200 is a wasteful number, since it uses less digits than its factorization.

228642200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60204 (or 60195 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 228642200 is about 15120.9192842234. The cubic root of 228642200 is about 611.4845147395.

The spelling of 228642200 in words is "two hundred twenty-eight million, six hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 152 190 200 380 475 760 950 1900 3800 60169 120338 240676 300845 481352 601690 1143211 1203380 1504225 2286422 2406760 3008450 4572844 5716055 6016900 9145688 11432110 12033800 22864220 28580275 45728440 57160550 114321100 228642200