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30211233212 = 2247160698049
BaseRepresentation
bin11100001000101110…
…101101010110111100
32212222110202122212102
4130020232231112330
5443333033430322
621513455324232
72116443150056
oct341056552674
985873678772
1030211233212
11118a34a9736
125a31820678
132b06083374
1416685128d6
15bbc451792
hex708bad5bc

30211233212 has 12 divisors (see below), whose sum is σ = 53994544800. Its totient is φ = 14784220416.

The previous prime is 30211233211. The next prime is 30211233253. The reversal of 30211233212 is 21233211203.

It is a super-2 number, since 2×302112332122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211233211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80348837 + ... + 80349212.

It is an arithmetic number, because the mean of its divisors is an integer number (4499545400).

Almost surely, 230211233212 is an apocalyptic number.

It is an amenable number.

30211233212 is a deficient number, since it is larger than the sum of its proper divisors (23783311588).

30211233212 is a wasteful number, since it uses less digits than its factorization.

30211233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160698100 (or 160698098 counting only the distinct ones).

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

Adding to 30211233212 its reverse (21233211203), we get a palindrome (51444444415).

The spelling of 30211233212 in words is "thirty billion, two hundred eleven million, two hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 4 47 94 188 160698049 321396098 642792196 7552808303 15105616606 30211233212