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1210130212 = 222910432157
BaseRepresentation
bin100100000100001…
…0001111100100100
310010100001222120111
41020020101330210
54434243131322
6320025142404
741662636264
oct11010217444
93110058514
101210130212
115710a5815
1229932aa04
131639303a5
14b6a097a4
157138c177
hex48211f24

1210130212 has 12 divisors (see below), whose sum is σ = 2190753180. Its totient is φ = 584200736.

The previous prime is 1210130203. The next prime is 1210130219. The reversal of 1210130212 is 2120310121.

It can be written as a sum of positive squares in 2 ways, for example, as 449694436 + 760435776 = 21206^2 + 27576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210130192 and 1210130201.

It is not an unprimeable number, because it can be changed into a prime (1210130219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215963 + ... + 5216194.

It is an arithmetic number, because the mean of its divisors is an integer number (182562765).

Almost surely, 21210130212 is an apocalyptic number.

It is an amenable number.

1210130212 is a deficient number, since it is larger than the sum of its proper divisors (980622968).

1210130212 is a wasteful number, since it uses less digits than its factorization.

1210130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10432190 (or 10432188 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1210130212 is about 34786.9258774040. The cubic root of 1210130212 is about 1065.6404596926.

Adding to 1210130212 its reverse (2120310121), we get a palindrome (3330440333).

The spelling of 1210130212 in words is "one billion, two hundred ten million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 4 29 58 116 10432157 20864314 41728628 302532553 605065106 1210130212