Base | Representation |
---|---|
bin | 11100101000110000… |
… | …010001001110111000 |
3 | 2221100220202022110112 |
4 | 130220300101032320 |
5 | 1000433104410313 |
6 | 22043051203452 |
7 | 2135656023050 |
oct | 345060211670 |
9 | 87326668415 |
10 | 30748513208 |
11 | 12049809096 |
12 | 5b61746588 |
13 | 2b9048bc1a |
14 | 16b9a10560 |
15 | bee6d08a8 |
hex | 728c113b8 |
30748513208 has 32 divisors (see below), whose sum is σ = 65917538400. Its totient is φ = 13172360832.
The previous prime is 30748513199. The next prime is 30748513253. The reversal of 30748513208 is 80231584703.
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, 18866 + ... + 248702.
It is an arithmetic number, because the mean of its divisors is an integer number (2059923075).
Almost surely, 230748513208 is an apocalyptic number.
It is an amenable number.
30748513208 is an abundant number, since it is smaller than the sum of its proper divisors (35169025192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30748513208 is a wasteful number, since it uses less digits than its factorization.
30748513208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232239 (or 232235 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 41.
The spelling of 30748513208 in words is "thirty billion, seven hundred forty-eight million, five hundred thirteen thousand, two hundred eight".
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