Base | Representation |
---|---|
bin | 1001010001101… |
… | …0100011010111 |
3 | 2201012122002121 |
4 | 2110122203113 |
5 | 34424443241 |
6 | 3505520411 |
7 | 651460531 |
oct | 224324327 |
9 | 81178077 |
10 | 38906071 |
11 | 1aa63786 |
12 | 11043107 |
13 | 80a2959 |
14 | 524a851 |
15 | 3637ad1 |
hex | 251a8d7 |
38906071 has 4 divisors (see below), whose sum is σ = 39023944. Its totient is φ = 38788200.
The previous prime is 38906057. The next prime is 38906123. The reversal of 38906071 is 17060983.
38906071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 38906071 - 25 = 38906039 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 (38906011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58440 + ... + 59101.
It is an arithmetic number, because the mean of its divisors is an integer number (9755986).
Almost surely, 238906071 is an apocalyptic number.
38906071 is a deficient number, since it is larger than the sum of its proper divisors (117873).
38906071 is a wasteful number, since it uses less digits than its factorization.
38906071 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117872.
The product of its (nonzero) digits is 9072, while the sum is 34.
The square root of 38906071 is about 6237.4731261946. The cubic root of 38906071 is about 338.8486749300.
The spelling of 38906071 in words is "thirty-eight million, nine hundred six thousand, seventy-one".
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