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30212213111 = 13113710911543
BaseRepresentation
bin11100001000110010…
…011100100101110111
32212222112121110000222
4130020302130211313
5443333311304421
621513532324555
72116454400653
oct341062344567
985875543028
1030212213111
11118a4008973
125a3201375b
132b063373a2
1416686c9a63
15bbc596cab
hex708c9c977

30212213111 has 16 divisors (see below), whose sum is σ = 30713050368. Its totient is φ = 29716190400.

The previous prime is 30212213047. The next prime is 30212213117. The reversal of 30212213111 is 11131221203.

It is a cyclic number.

It is not a de Polignac number, because 30212213111 - 26 = 30212213047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30212213111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212213117) 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, 19579406 + ... + 19580948.

It is an arithmetic number, because the mean of its divisors is an integer number (1919565648).

Almost surely, 230212213111 is an apocalyptic number.

30212213111 is a deficient number, since it is larger than the sum of its proper divisors (500837257).

30212213111 is a wasteful number, since it uses less digits than its factorization.

30212213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 30212213111 its reverse (11131221203), we get a palindrome (41343434314).

The spelling of 30212213111 in words is "thirty billion, two hundred twelve million, two hundred thirteen thousand, one hundred eleven".

Divisors: 1 131 137 1091 1543 17947 142921 149467 202133 211391 1683413 19580177 27692221 220527103 230627581 30212213111