Base | Representation |
---|---|
bin | 1001000101001… |
… | …0010011001111 |
3 | 2122122221221122 |
4 | 2101102103033 |
5 | 34222221324 |
6 | 3440151155 |
7 | 641503301 |
oct | 221222317 |
9 | 78587848 |
10 | 38085839 |
11 | 1a553500 |
12 | 109084bb |
13 | 7b764cc |
14 | 50b5971 |
15 | 3524a5e |
hex | 24524cf |
38085839 has 24 divisors (see below), whose sum is σ = 44151744. Its totient is φ = 32788800.
The previous prime is 38085829. The next prime is 38085841. The reversal of 38085839 is 93858083.
It is not a de Polignac number, because 38085839 - 216 = 38020303 is a prime.
It is a super-2 number, since 2×380858392 = 2901062264667842, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 38085839.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38085809) 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, 210329 + ... + 210509.
It is an arithmetic number, because the mean of its divisors is an integer number (1839656).
Almost surely, 238085839 is an apocalyptic number.
38085839 is a deficient number, since it is larger than the sum of its proper divisors (6065905).
38085839 is a wasteful number, since it uses less digits than its factorization.
38085839 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 287 (or 276 counting only the distinct ones).
The product of its (nonzero) digits is 207360, while the sum is 44.
The square root of 38085839 is about 6171.3725377747. The cubic root of 38085839 is about 336.4504982059.
The spelling of 38085839 in words is "thirty-eight million, eighty-five thousand, eight hundred thirty-nine".
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