Base | Representation |
---|---|
bin | 1001000101011… |
… | …1000000011001 |
3 | 2122200221101111 |
4 | 2101113000121 |
5 | 34223330423 |
6 | 3440420321 |
7 | 641613424 |
oct | 221270031 |
9 | 78627344 |
10 | 38105113 |
11 | 1a566a32 |
12 | 109176a1 |
13 | 7b82207 |
14 | 50bc9bb |
15 | 352a60d |
hex | 2457019 |
38105113 has 4 divisors (see below), whose sum is σ = 39034548. Its totient is φ = 37175680.
The previous prime is 38105087. The next prime is 38105129. The reversal of 38105113 is 31150183.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31150183 = 229 ⋅136027.
It can be written as a sum of positive squares in 2 ways, for example, as 4892944 + 33212169 = 2212^2 + 5763^2 .
It is a cyclic number.
It is not a de Polignac number, because 38105113 - 29 = 38104601 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38105173) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464656 + ... + 464737.
It is an arithmetic number, because the mean of its divisors is an integer number (9758637).
Almost surely, 238105113 is an apocalyptic number.
It is an amenable number.
38105113 is a deficient number, since it is larger than the sum of its proper divisors (929435).
38105113 is an equidigital number, since it uses as much as digits as its factorization.
38105113 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 929434.
The product of its (nonzero) digits is 360, while the sum is 22.
The square root of 38105113 is about 6172.9339053646. The cubic root of 38105113 is about 336.5072441730.
Adding to 38105113 its reverse (31150183), we get a palindrome (69255296).
The spelling of 38105113 in words is "thirty-eight million, one hundred five thousand, one hundred thirteen".
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