Base | Representation |
---|---|
bin | 11100000000011000… |
… | …111100100101010000 |
3 | 2212121201110212020010 |
4 | 130000120330211100 |
5 | 443041223420142 |
6 | 21451540314520 |
7 | 2113123631454 |
oct | 340030744520 |
9 | 85551425203 |
10 | 30071310672 |
11 | 1183151a877 |
12 | 59b29a2a40 |
13 | 2ab30a2370 |
14 | 1653acc664 |
15 | bb0012e9c |
hex | 70063c950 |
30071310672 has 40 divisors (see below), whose sum is σ = 83659930144. Its totient is φ = 9252710784.
The previous prime is 30071310617. The next prime is 30071310679. The reversal of 30071310672 is 27601317003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30071310679) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24094978 + ... + 24096225.
Almost surely, 230071310672 is an apocalyptic number.
It is an amenable number.
30071310672 is an abundant number, since it is smaller than the sum of its proper divisors (53588619472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30071310672 is a wasteful number, since it uses less digits than its factorization.
30071310672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48191227 (or 48191221 counting only the distinct ones).
The product of its (nonzero) digits is 5292, while the sum is 30.
Adding to 30071310672 its reverse (27601317003), we get a palindrome (57672627675).
The spelling of 30071310672 in words is "thirty billion, seventy-one million, three hundred ten thousand, six hundred seventy-two".
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