Base | Representation |
---|---|
bin | 11100101110000101… |
… | …110010110001111101 |
3 | 2221121011012211111112 |
4 | 130232011302301331 |
5 | 1001124014313400 |
6 | 22100010131405 |
7 | 2141124013121 |
oct | 345605626175 |
9 | 87534184445 |
10 | 30838041725 |
11 | 120952a81a7 |
12 | 5b87720b65 |
13 | 2ba5ba738a |
14 | 16c7877581 |
15 | c074b7835 |
hex | 72e172c7d |
30838041725 has 6 divisors (see below), whose sum is σ = 38239171770. Its totient is φ = 24670433360.
The previous prime is 30838041673. The next prime is 30838041733. The reversal of 30838041725 is 52714083803.
It can be written as a sum of positive squares in 3 ways, for example, as 4191397081 + 26646644644 = 64741^2 + 163238^2 .
It is not a de Polignac number, because 30838041725 - 232 = 26543074429 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616760810 + ... + 616760859.
It is an arithmetic number, because the mean of its divisors is an integer number (6373195295).
Almost surely, 230838041725 is an apocalyptic number.
It is an amenable number.
30838041725 is a deficient number, since it is larger than the sum of its proper divisors (7401130045).
30838041725 is a wasteful number, since it uses less digits than its factorization.
30838041725 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1233521679 (or 1233521674 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 41.
The spelling of 30838041725 in words is "thirty billion, eight hundred thirty-eight million, forty-one thousand, seven hundred twenty-five".
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