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2224242220 = 225195853269
BaseRepresentation
bin1000010010010011…
…0011111000101100
312202000022012201111
42010210303320230
514023401222340
61004413121404
7106055514124
oct20444637054
95660265644
102224242220
11a41588112
12520a89264
13295a6b975
1417158bc84
15d0409aea
hex84933e2c

2224242220 has 24 divisors (see below), whose sum is σ = 4916746800. Its totient is φ = 842870592.

The previous prime is 2224242191. The next prime is 2224242221. The reversal of 2224242220 is 222424222.

It is a junction number, because it is equal to n+sod(n) for n = 2224242191 and 2224242200.

It is not an unprimeable number, because it can be changed into a prime (2224242221) 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, 2926255 + ... + 2927014.

It is an arithmetic number, because the mean of its divisors is an integer number (204864450).

Almost surely, 22224242220 is an apocalyptic number.

2224242220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2224242220 is an abundant number, since it is smaller than the sum of its proper divisors (2692504580).

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

2224242220 is a wasteful number, since it uses less digits than its factorization.

2224242220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853297 (or 5853295 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2224242220 is about 47161.8725243178. The cubic root of 2224242220 is about 1305.3511618404.

Adding to 2224242220 its reverse (222424222), we get a palindrome (2446666442).

The spelling of 2224242220 in words is "two billion, two hundred twenty-four million, two hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5853269 11706538 23413076 29266345 58532690 111212111 117065380 222424222 444848444 556060555 1112121110 2224242220