Base | Representation |
---|---|
bin | 11100101011000011… |
… | …011011001010011000 |
3 | 2221110121100011120100 |
4 | 130223003123022120 |
5 | 1001022443322143 |
6 | 22050550055400 |
7 | 2136634640052 |
oct | 345303331230 |
9 | 87417304510 |
10 | 30787089048 |
11 | 12069566751 |
12 | 5b7264a560 |
13 | 2b98477471 |
14 | 16c0bb28d2 |
15 | c02ca06d3 |
hex | 72b0db298 |
30787089048 has 48 divisors (see below), whose sum is σ = 84038273280. Its totient is φ = 10181553984.
The previous prime is 30787089041. The next prime is 30787089107. The reversal of 30787089048 is 84098078703.
It is a junction number, because it is equal to n+sod(n) for n = 30787088985 and 30787089003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30787089041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1674315 + ... + 1692602.
It is an arithmetic number, because the mean of its divisors is an integer number (1750797360).
Almost surely, 230787089048 is an apocalyptic number.
It is an amenable number.
30787089048 is an abundant number, since it is smaller than the sum of its proper divisors (53251184232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30787089048 is a wasteful number, since it uses less digits than its factorization.
30787089048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3367056 (or 3367049 counting only the distinct ones).
The product of its (nonzero) digits is 2709504, while the sum is 54.
The spelling of 30787089048 in words is "thirty billion, seven hundred eighty-seven million, eighty-nine thousand, forty-eight".
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