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30305230212 = 22337178338281
BaseRepresentation
bin11100001110010101…
…010001110110000100
32220020000122012111210
4130032111101312010
5444031114331322
621531054131420
72121664130565
oct341625216604
986200565453
1030305230212
1111941570004
125a591b0b70
132b1c6a46aa
141676bc016c
15bc581c70c
hex70e551d84

30305230212 has 48 divisors (see below), whose sum is σ = 72665973632. Its totient is φ = 9822954240.

The previous prime is 30305230199. The next prime is 30305230213. The reversal of 30305230212 is 21203250303.

It is not an unprimeable number, because it can be changed into a prime (30305230213) 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, 772512 + ... + 810792.

Almost surely, 230305230212 is an apocalyptic number.

It is an amenable number.

30305230212 is an abundant number, since it is smaller than the sum of its proper divisors (42360743420).

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

30305230212 is a wasteful number, since it uses less digits than its factorization.

30305230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40108 (or 40106 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 30305230212 its reverse (21203250303), we get a palindrome (51508480515).

The spelling of 30305230212 in words is "thirty billion, three hundred five million, two hundred thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 1783 3566 5349 7132 10698 21396 38281 65971 76562 114843 131942 153124 197913 229686 263884 395826 459372 791652 1416397 2832794 4249191 5665588 8498382 16996764 68255023 136510046 204765069 273020092 409530138 819060276 2525435851 5050871702 7576307553 10101743404 15152615106 30305230212