Base | Representation |
---|---|
bin | 1001001000100… |
… | …1111110001101 |
3 | 2200002112202012 |
4 | 2102021332031 |
5 | 34302020434 |
6 | 3445111005 |
7 | 643443146 |
oct | 222117615 |
9 | 80075665 |
10 | 38313869 |
11 | 1a699860 |
12 | 109b8465 |
13 | 7c26239 |
14 | 5134acd |
15 | 356c3ce |
hex | 2489f8d |
38313869 has 8 divisors (see below), whose sum is σ = 44255808. Its totient is φ = 32781760.
The previous prime is 38313829. The next prime is 38313871. The reversal of 38313869 is 96831383.
38313869 = 10452 + 10462 + ... + 10782.
38313869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38313869 - 212 = 38309773 is a prime.
It is a super-2 number, since 2×383138692 = 2935905115498322, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38313829) 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 7 ways as a sum of consecutive naturals, for example, 102257 + ... + 102630.
It is an arithmetic number, because the mean of its divisors is an integer number (5531976).
Almost surely, 238313869 is an apocalyptic number.
It is an amenable number.
38313869 is a deficient number, since it is larger than the sum of its proper divisors (5941939).
38313869 is a wasteful number, since it uses less digits than its factorization.
38313869 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 204915.
The product of its digits is 93312, while the sum is 41.
The square root of 38313869 is about 6189.8197873605. The cubic root of 38313869 is about 337.1206352828.
The spelling of 38313869 in words is "thirty-eight million, three hundred thirteen thousand, eight hundred sixty-nine".
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