Base | Representation |
---|---|
bin | 1001000101011… |
… | …1101010111111 |
3 | 2122201002010110 |
4 | 2101113222333 |
5 | 34223422324 |
6 | 3440441103 |
7 | 641624400 |
oct | 221275277 |
9 | 78632113 |
10 | 38107839 |
11 | 1a568a90 |
12 | 10919193 |
13 | 7b83523 |
14 | 50bd9a7 |
15 | 352b329 |
hex | 2457abf |
38107839 has 24 divisors (see below), whose sum is σ = 64482048. Its totient is φ = 19795440.
The previous prime is 38107813. The next prime is 38107841. The reversal of 38107839 is 93870183.
It is not a de Polignac number, because 38107839 - 25 = 38107807 is a prime.
It is a plaindrome in base 16.
It is a junction number, because it is equal to n+sod(n) for n = 38107797 and 38107806.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38107879) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10167 + ... + 13400.
It is an arithmetic number, because the mean of its divisors is an integer number (2686752).
Almost surely, 238107839 is an apocalyptic number.
38107839 is a deficient number, since it is larger than the sum of its proper divisors (26374209).
38107839 is a wasteful number, since it uses less digits than its factorization.
38107839 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23595 (or 23588 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 39.
The square root of 38107839 is about 6173.1547040391. The cubic root of 38107839 is about 336.5152684406.
The spelling of 38107839 in words is "thirty-eight million, one hundred seven thousand, eight hundred thirty-nine".
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