Base | Representation |
---|---|
bin | 1011010001110110011… |
… | …01101000101010101100 |
3 | 1101001022100210112002000 |
4 | 11220323031220222230 |
5 | 22322140331034303 |
6 | 454011133332300 |
7 | 36666420533505 |
oct | 5507315505254 |
9 | 1331270715060 |
10 | 387540486828 |
11 | 13a39a557780 |
12 | 63136637090 |
13 | 2a711228a41 |
14 | 14a8552bbac |
15 | a132b5ada3 |
hex | 5a3b368aac |
387540486828 has 48 divisors (see below), whose sum is σ = 1096074107520. Its totient is φ = 117436510800.
The previous prime is 387540486803. The next prime is 387540486841. The reversal of 387540486828 is 828684045783.
387540486828 is a `hidden beast` number, since 3 + 8 + 7 + 540 + 4 + 8 + 6 + 82 + 8 = 666.
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, 163105078 + ... + 163107453.
It is an arithmetic number, because the mean of its divisors is an integer number (22834877240).
Almost surely, 2387540486828 is an apocalyptic number.
It is an amenable number.
387540486828 is an abundant number, since it is smaller than the sum of its proper divisors (708533620692).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387540486828 is a wasteful number, since it uses less digits than its factorization.
387540486828 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 326212555 (or 326212547 counting only the distinct ones).
The product of its (nonzero) digits is 82575360, while the sum is 63.
The spelling of 387540486828 in words is "three hundred eighty-seven billion, five hundred forty million, four hundred eighty-six thousand, eight hundred twenty-eight".
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