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30304441212 = 22318113952321
BaseRepresentation
bin11100001110010010…
…010001001101111100
32220012222011010012120
4130032102101031330
5444030414104322
621531025202540
72121654333363
oct341622211574
986188133176
1030304441212
1111941081241
125a58a90450
132b1c489526
141676a567da
15bc5713a5c
hex70e49137c

30304441212 has 24 divisors (see below), whose sum is σ = 71101032912. Its totient is φ = 10045670400.

The previous prime is 30304441147. The next prime is 30304441217. The reversal of 30304441212 is 21214440303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304441217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6973989 + ... + 6978332.

It is an arithmetic number, because the mean of its divisors is an integer number (2962543038).

Almost surely, 230304441212 is an apocalyptic number.

It is an amenable number.

30304441212 is an abundant number, since it is smaller than the sum of its proper divisors (40796591700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30304441212 is a wasteful number, since it uses less digits than its factorization.

30304441212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13952509 (or 13952507 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30304441212 its reverse (21214440303), we get a palindrome (51518881515).

Subtracting from 30304441212 its reverse (21214440303), we obtain a palindrome (9090000909).

The spelling of 30304441212 in words is "thirty billion, three hundred four million, four hundred forty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 13952321 27904642 41856963 55809284 83713926 167427852 2525370101 5050740202 7576110303 10101480404 15152220606 30304441212