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222130212 = 223103179717
BaseRepresentation
bin11010011110101…
…11000000100100
3120110222101100220
431033113000210
5423331131322
634013004340
75335034643
oct1517270044
9513871326
10222130212
11104428797
12624836b0
13370351c5
142170335a
151477b55c
hexd3d7024

222130212 has 24 divisors (see below), whose sum is σ = 523338816. Its totient is φ = 73324128.

The previous prime is 222130187. The next prime is 222130241. The reversal of 222130212 is 212031222.

It is a happy number.

222130212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222130191 and 222130200.

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 7 ways as a sum of consecutive naturals, for example, 88623 + ... + 91094.

It is an arithmetic number, because the mean of its divisors is an integer number (21805784).

Almost surely, 2222130212 is an apocalyptic number.

It is an amenable number.

222130212 is an abundant number, since it is smaller than the sum of its proper divisors (301208604).

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

222130212 is a wasteful number, since it uses less digits than its factorization.

222130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179827 (or 179825 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222130212 is about 14904.0334138112. The cubic root of 222130212 is about 605.6232559023.

Adding to 222130212 its reverse (212031222), we get a palindrome (434161434).

The spelling of 222130212 in words is "two hundred twenty-two million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 103 206 309 412 618 1236 179717 359434 539151 718868 1078302 2156604 18510851 37021702 55532553 74043404 111065106 222130212