Base | Representation |
---|---|
bin | 11011111111100101… |
… | …110001001110000110 |
3 | 2212120210020021002121 |
4 | 123333211301032012 |
5 | 443024310113130 |
6 | 21450341000154 |
7 | 2112601614220 |
oct | 337745611606 |
9 | 85523207077 |
10 | 30057894790 |
11 | 11824997270 |
12 | 59aa3b305a |
13 | 2ab0385a81 |
14 | 1651dd9410 |
15 | badc62d7a |
hex | 6ff971386 |
30057894790 has 32 divisors (see below), whose sum is σ = 67454601984. Its totient is φ = 9368694240.
The previous prime is 30057894751. The next prime is 30057894821. The reversal of 30057894790 is 9749875003.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19517344 + ... + 19518883.
It is an arithmetic number, because the mean of its divisors is an integer number (2107956312).
Almost surely, 230057894790 is an apocalyptic number.
30057894790 is an abundant number, since it is smaller than the sum of its proper divisors (37396707194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30057894790 is a wasteful number, since it uses less digits than its factorization.
30057894790 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39036252.
The product of its (nonzero) digits is 1905120, while the sum is 52.
The spelling of 30057894790 in words is "thirty billion, fifty-seven million, eight hundred ninety-four thousand, seven hundred ninety".
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