Base | Representation |
---|---|
bin | 11100011001001110… |
… | …011011111100110000 |
3 | 2220200202112011021111 |
4 | 130121032123330300 |
5 | 444414411022333 |
6 | 22001143203104 |
7 | 2126343414316 |
oct | 343116337460 |
9 | 86622464244 |
10 | 30487985968 |
11 | 11a25745120 |
12 | 5aaa446494 |
13 | 2b4b5019ab |
14 | 16931940b6 |
15 | bd68bc4cd |
hex | 71939bf30 |
30487985968 has 40 divisors (see below), whose sum is σ = 64620149760. Its totient is φ = 13819544640.
The previous prime is 30487985953. The next prime is 30487985971. The reversal of 30487985968 is 86958978403.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178080 + ... + 304447.
It is an arithmetic number, because the mean of its divisors is an integer number (1615503744).
Almost surely, 230487985968 is an apocalyptic number.
It is an amenable number.
30487985968 is an abundant number, since it is smaller than the sum of its proper divisors (34132163792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30487985968 is a wasteful number, since it uses less digits than its factorization.
30487985968 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 482905 (or 482899 counting only the distinct ones).
The product of its (nonzero) digits is 104509440, while the sum is 67.
The spelling of 30487985968 in words is "thirty billion, four hundred eighty-seven million, nine hundred eighty-five thousand, nine hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •