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30221312011 = 11194110134919
BaseRepresentation
bin11100001001010101…
…001010000000001011
32220000011201201101021
4130021111022000023
5443343123441021
621514455333311
72116624625242
oct341125120013
986004651337
1030221312011
11118a9163020
125a35081237
132b081a1a57
1416699b7959
15bbd292c41
hex70954a00b

30221312011 has 32 divisors (see below), whose sum is σ = 35903347200. Its totient is φ = 25140960000.

The previous prime is 30221311957. The next prime is 30221312027. The reversal of 30221312011 is 11021312203.

It is a cyclic number.

It is not a de Polignac number, because 30221312011 - 217 = 30221180939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30221312041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848010 + ... + 882928.

It is an arithmetic number, because the mean of its divisors is an integer number (1121979600).

Almost surely, 230221312011 is an apocalyptic number.

30221312011 is a deficient number, since it is larger than the sum of its proper divisors (5682035189).

30221312011 is a wasteful number, since it uses less digits than its factorization.

30221312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35091.

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

Adding to 30221312011 its reverse (11021312203), we get a palindrome (41242624214).

The spelling of 30221312011 in words is "thirty billion, two hundred twenty-one million, three hundred twelve thousand, eleven".

Divisors: 1 11 19 41 101 209 451 779 1111 1919 4141 8569 21109 34919 45551 78679 384109 663461 865469 1431679 3526819 7298071 15748469 27201901 38795009 67009561 144599579 299220911 737105171 1590595369 2747392001 30221312011