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224982820 = 22511249141
BaseRepresentation
bin11010110100011…
…11011100100100
3120200100022102001
431122033130210
5430043422240
634154055044
75401215406
oct1532173444
9520308361
10224982820
11105aa6a17
126341a484
13377c373a
1421c46b76
1514b4189a
hexd68f724

224982820 has 12 divisors (see below), whose sum is σ = 472463964. Its totient is φ = 89993120.

The previous prime is 224982817. The next prime is 224982859. The reversal of 224982820 is 28289422.

It can be written as a sum of positive squares in 2 ways, for example, as 93238336 + 131744484 = 9656^2 + 11478^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 224982820.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5624551 + ... + 5624590.

It is an arithmetic number, because the mean of its divisors is an integer number (39371997).

Almost surely, 2224982820 is an apocalyptic number.

224982820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224982820 is an abundant number, since it is smaller than the sum of its proper divisors (247481144).

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

224982820 is a wasteful number, since it uses less digits than its factorization.

224982820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11249150 (or 11249148 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 224982820 is about 14999.4273224013. The cubic root of 224982820 is about 608.2047188329.

The spelling of 224982820 in words is "two hundred twenty-four million, nine hundred eighty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 11249141 22498282 44996564 56245705 112491410 224982820