Base | Representation |
---|---|
bin | 100011011100011011… |
… | …001100101101000101 |
3 | 10122020022120101112022 |
4 | 203130123030231011 |
5 | 1110420302341223 |
6 | 25252235532525 |
7 | 2515052302565 |
oct | 433433145505 |
9 | 118208511468 |
10 | 38057855813 |
11 | 1515a7383aa |
12 | 74615ba145 |
13 | 37868b4213 |
14 | 1bb0692da5 |
15 | ecb251ac8 |
hex | 8dc6ccb45 |
38057855813 has 8 divisors (see below), whose sum is σ = 38456593560. Its totient is φ = 37659248640.
The previous prime is 38057855807. The next prime is 38057855819. The reversal of 38057855813 is 31855875083.
38057855813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (38057855807) and next prime (38057855819).
It can be written as a sum of positive squares in 4 ways, for example, as 18047772964 + 20010082849 = 134342^2 + 141457^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 38057855813 - 28 = 38057855557 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38057855819) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621533 + ... + 680013.
It is an arithmetic number, because the mean of its divisors is an integer number (4807074195).
Almost surely, 238057855813 is an apocalyptic number.
It is an amenable number.
38057855813 is a deficient number, since it is larger than the sum of its proper divisors (398737747).
38057855813 is an equidigital number, since it uses as much as digits as its factorization.
38057855813 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65287.
The product of its (nonzero) digits is 4032000, while the sum is 53.
The spelling of 38057855813 in words is "thirty-eight billion, fifty-seven million, eight hundred fifty-five thousand, eight hundred thirteen".
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