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212011003213 = 269978551687
BaseRepresentation
bin1100010101110011010…
…1110010110101001101
3202021020102002212102021
43011130311302311031
511433144304100323
6241221351330141
721213554536042
oct3053465626515
9667212085367
10212011003213
1181a05758739
123510a080951
1316cb9837079
14a3933651c9
1557acb6a05d
hex315cd72d4d

212011003213 has 4 divisors (see below), whose sum is σ = 212089557600. Its totient is φ = 211932448828.

The previous prime is 212011003201. The next prime is 212011003241. The reversal of 212011003213 is 312300110212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212011003213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011007213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39273145 + ... + 39278542.

It is an arithmetic number, because the mean of its divisors is an integer number (53022389400).

Almost surely, 2212011003213 is an apocalyptic number.

It is an amenable number.

212011003213 is a deficient number, since it is larger than the sum of its proper divisors (78554387).

212011003213 is an equidigital number, since it uses as much as digits as its factorization.

212011003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78554386.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212011003213 its reverse (312300110212), we get a palindrome (524311113425).

The spelling of 212011003213 in words is "two hundred twelve billion, eleven million, three thousand, two hundred thirteen".

Divisors: 1 2699 78551687 212011003213