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213045431212 = 22334131594031
BaseRepresentation
bin1100011001101001111…
…1110100101110101100
3202100220111120020212101
43012122133310232230
511442304112244322
6241512142544444
721251315200105
oct3063237645654
9670814506771
10213045431212
1182396656809
1235358598124
1317122c39843
14a4508b53ac
15581d89c327
hex319a7f4bac

213045431212 has 12 divisors (see below), whose sum is σ = 372840896736. Its totient is φ = 106519460720.

The previous prime is 213045431197. The next prime is 213045431231. The reversal of 213045431212 is 212134540312.

213045431212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 663364 + ... + 930667.

It is an arithmetic number, because the mean of its divisors is an integer number (31070074728).

Almost surely, 2213045431212 is an apocalyptic number.

It is an amenable number.

213045431212 is a deficient number, since it is larger than the sum of its proper divisors (159795465524).

213045431212 is a wasteful number, since it uses less digits than its factorization.

213045431212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627448 (or 1627446 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 213045431212 its reverse (212134540312), we get a palindrome (425179971524).

The spelling of 213045431212 in words is "two hundred thirteen billion, forty-five million, four hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 33413 66826 133652 1594031 3188062 6376124 53261357803 106522715606 213045431212