Base | Representation |
---|---|
bin | 11100001110010101… |
… | …010001110110000100 |
3 | 2220020000122012111210 |
4 | 130032111101312010 |
5 | 444031114331322 |
6 | 21531054131420 |
7 | 2121664130565 |
oct | 341625216604 |
9 | 86200565453 |
10 | 30305230212 |
11 | 11941570004 |
12 | 5a591b0b70 |
13 | 2b1c6a46aa |
14 | 1676bc016c |
15 | bc581c70c |
hex | 70e551d84 |
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".
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