Base | Representation |
---|---|
bin | 11100101011001010… |
… | …000110001001010000 |
3 | 2221110201122000122011 |
4 | 130223022012021100 |
5 | 1001023420303333 |
6 | 22051051352304 |
7 | 2136655543000 |
oct | 345312061120 |
9 | 87421560564 |
10 | 30788837968 |
11 | 1206a550739 |
12 | 5b73152694 |
13 | 2b9893a525 |
14 | 16c110a000 |
15 | c02ee89cd |
hex | 72b286250 |
30788837968 has 40 divisors (see below), whose sum is σ = 69566628800. Its totient is φ = 13195213920.
The previous prime is 30788837873. The next prime is 30788837977. The reversal of 30788837968 is 86973888703.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2799618 + ... + 2810593.
It is an arithmetic number, because the mean of its divisors is an integer number (1739165720).
Almost surely, 230788837968 is an apocalyptic number.
It is an amenable number.
30788837968 is an abundant number, since it is smaller than the sum of its proper divisors (38777790832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30788837968 is an equidigital number, since it uses as much as digits as its factorization.
30788837968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5610240 (or 5610220 counting only the distinct ones).
The product of its (nonzero) digits is 97542144, while the sum is 67.
The spelling of 30788837968 in words is "thirty billion, seven hundred eighty-eight million, eight hundred thirty-seven thousand, nine hundred sixty-eight".
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