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212013230213 = 2337347951593
BaseRepresentation
bin1100010101110011111…
…0010010100010000101
3202021020120022000021202
43011130332102202011
511433200341331323
6241221511152245
721213612502541
oct3053476224205
9667216260252
10212013230213
1181a06a39934
123510a975685
1316cba136915
14a393784a21
1557ace59d28
hex315cf92885

212013230213 has 16 divisors (see below), whose sum is σ = 222291717120. Its totient is φ = 201825427584.

The previous prime is 212013230207. The next prime is 212013230243. The reversal of 212013230213 is 312032310212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212013230213 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 (212013230243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4083545 + ... + 4135137.

It is an arithmetic number, because the mean of its divisors is an integer number (13893232320).

Almost surely, 2212013230213 is an apocalyptic number.

212013230213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212013230213 is a deficient number, since it is larger than the sum of its proper divisors (10278486907).

212013230213 is a wasteful number, since it uses less digits than its factorization.

212013230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52468.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212013230213 its reverse (312032310212), we get a palindrome (524045540425).

The spelling of 212013230213 in words is "two hundred twelve billion, thirteen million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 23 373 479 8579 11017 51593 178667 1186639 4109341 19244189 24713047 442616347 568400081 9217966531 212013230213