Base | Representation |
---|---|
bin | 1001000101100… |
… | …1100000101001 |
3 | 2122201110110100 |
4 | 2101121200221 |
5 | 34224142434 |
6 | 3440540013 |
7 | 641655345 |
oct | 221314051 |
9 | 78643410 |
10 | 38115369 |
11 | 1a573706 |
12 | 10921609 |
13 | 7b86a96 |
14 | 50c2625 |
15 | 352d699 |
hex | 2459829 |
38115369 has 6 divisors (see below), whose sum is σ = 55055546. Its totient is φ = 25410240.
The previous prime is 38115359. The next prime is 38115373. The reversal of 38115369 is 96351183.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 37454400 + 660969 = 6120^2 + 813^2 .
It is not a de Polignac number, because 38115369 - 24 = 38115353 is a prime.
It is a super-2 number, since 2×381153692 = 2905562708012322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38115359) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2117512 + ... + 2117529.
Almost surely, 238115369 is an apocalyptic number.
It is an amenable number.
38115369 is a deficient number, since it is larger than the sum of its proper divisors (16940177).
38115369 is a wasteful number, since it uses less digits than its factorization.
38115369 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4235047 (or 4235044 counting only the distinct ones).
The product of its digits is 19440, while the sum is 36.
The square root of 38115369 is about 6173.7645727708. The cubic root of 38115369 is about 336.5374317991.
It can be divided in two parts, 3811 and 5369, that added together give a triangular number (9180 = T135).
The spelling of 38115369 in words is "thirty-eight million, one hundred fifteen thousand, three hundred sixty-nine".
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