Base | Representation |
---|---|
bin | 11011111100010000… |
… | …101000101100101100 |
3 | 2212102220002200200220 |
4 | 123330100220230230 |
5 | 442421004220322 |
6 | 21441023251340 |
7 | 2111322663300 |
oct | 337420505454 |
9 | 85386080626 |
10 | 30002023212 |
11 | 117a63a6107 |
12 | 5993749b50 |
13 | 2aa1922c75 |
14 | 1648813d00 |
15 | ba8dc855c |
hex | 6fc428b2c |
30002023212 has 72 divisors (see below), whose sum is σ = 82814397120. Its totient is φ = 8426708640.
The previous prime is 30002023141. The next prime is 30002023229. The reversal of 30002023212 is 21232020003.
It is a junction number, because it is equal to n+sod(n) for n = 30002023191 and 30002023200.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 397714 + ... + 467097.
It is an arithmetic number, because the mean of its divisors is an integer number (1150199960).
Almost surely, 230002023212 is an apocalyptic number.
It is an amenable number.
30002023212 is an abundant number, since it is smaller than the sum of its proper divisors (52812373908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30002023212 is a wasteful number, since it uses less digits than its factorization.
30002023212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 864891 (or 864882 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 30002023212 its reverse (21232020003), we get a palindrome (51234043215).
The spelling of 30002023212 in words is "thirty billion, two million, twenty-three thousand, two hundred twelve".
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