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30300112122 = 2378928328643
BaseRepresentation
bin11100001110000001…
…110000010011111010
32220012200000011210220
4130032001300103322
5444023312041442
621530352320510
72121602463210
oct341601602372
986180004726
1030300112122
1111939694785
125a57543136
132b1b601c37
14167624acb0
15bc515aeec
hex70e0704fa

30300112122 has 64 divisors (see below), whose sum is σ = 70285501440. Its totient is φ = 8529358464.

The previous prime is 30300112111. The next prime is 30300112127. The reversal of 30300112122 is 22121100303.

It is not an unprimeable number, because it can be changed into a prime (30300112127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1043533 + ... + 1072175.

It is an arithmetic number, because the mean of its divisors is an integer number (1098210960).

Almost surely, 230300112122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30300112122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35142750720).

30300112122 is an abundant number, since it is smaller than the sum of its proper divisors (39985389318).

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

30300112122 is a wasteful number, since it uses less digits than its factorization.

30300112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29027.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30300112122 its reverse (22121100303), we get a palindrome (52421212425).

The spelling of 30300112122 in words is "thirty billion, three hundred million, one hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 89 178 267 283 534 566 623 849 1246 1698 1869 1981 3738 3962 5943 11886 25187 28643 50374 57286 75561 85929 151122 171858 176309 200501 352618 401002 528927 601503 1057854 1203006 2549227 5098454 7647681 8105969 15295362 16211938 17844589 24317907 35689178 48635814 53533767 56741783 107067534 113483566 170225349 340450698 721431241 1442862482 2164293723 4328587446 5050018687 10100037374 15150056061 30300112122