Base | Representation |
---|---|
bin | 11100001000110101… |
… | …111010100010100100 |
3 | 2212222121022122002101 |
4 | 130020311322202210 |
5 | 443334024402322 |
6 | 21514004021444 |
7 | 2116465205260 |
oct | 341065724244 |
9 | 85877278071 |
10 | 30213122212 |
11 | 118a4579999 |
12 | 5a32391884 |
13 | 2b06595110 |
14 | 16688850a0 |
15 | bbc6c6327 |
hex | 708d7a8a4 |
30213122212 has 48 divisors (see below), whose sum is σ = 65091261312. Its totient is φ = 11949350400.
The previous prime is 30213122201. The next prime is 30213122221. The reversal of 30213122212 is 21222131203.
It is a self number, because there is not a number n which added to its sum of digits gives 30213122212.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830348 + ... + 1846780.
It is an arithmetic number, because the mean of its divisors is an integer number (1356067944).
Almost surely, 230213122212 is an apocalyptic number.
It is an amenable number.
30213122212 is an abundant number, since it is smaller than the sum of its proper divisors (34878139100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30213122212 is a wasteful number, since it uses less digits than its factorization.
30213122212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21508 (or 21506 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 30213122212 its reverse (21222131203), we get a palindrome (51435253415).
The spelling of 30213122212 in words is "thirty billion, two hundred thirteen million, one hundred twenty-two thousand, two hundred twelve".
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