Base | Representation |
---|---|
bin | 1001001100000… |
… | …0101101111011 |
3 | 2200111221100022 |
4 | 2103000231323 |
5 | 34331204412 |
6 | 3454001055 |
7 | 645365666 |
oct | 223005573 |
9 | 80457308 |
10 | 38538107 |
11 | 1a832283 |
12 | 10aa618b |
13 | 7ca431a |
14 | 51926dd |
15 | 35b3a72 |
hex | 24c0b7b |
38538107 has 4 divisors (see below), whose sum is σ = 38551056. Its totient is φ = 38525160.
The previous prime is 38538079. The next prime is 38538121. The reversal of 38538107 is 70183583.
38538107 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, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 38538107 - 26 = 38538043 is a prime.
It is a super-2 number, since 2×385381072 = 2970371382286898, which contains 22 as substring.
It is a Duffinian number.
It is a zygodrome in base 3.
It is not an unprimeable number, because it can be changed into a prime (38538607) 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, 482 + ... + 8792.
It is an arithmetic number, because the mean of its divisors is an integer number (9637764).
Almost surely, 238538107 is an apocalyptic number.
38538107 is a deficient number, since it is larger than the sum of its proper divisors (12949).
38538107 is an equidigital number, since it uses as much as digits as its factorization.
38538107 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12948.
The product of its (nonzero) digits is 20160, while the sum is 35.
The square root of 38538107 is about 6207.9068130893. The cubic root of 38538107 is about 337.7770403818. Note that the first 3 decimals are identical.
The spelling of 38538107 in words is "thirty-eight million, five hundred thirty-eight thousand, one hundred seven".
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