Base | Representation |
---|---|
bin | 1001001001000… |
… | …0000101000101 |
3 | 2200010211001201 |
4 | 2102100011011 |
5 | 34303321020 |
6 | 3445422501 |
7 | 643606114 |
oct | 222200505 |
9 | 80124051 |
10 | 38338885 |
11 | 1a706632 |
12 | 10a0aa31 |
13 | 7c34740 |
14 | 513dc7b |
15 | 3574a0a |
hex | 2490145 |
38338885 has 8 divisors (see below), whose sum is σ = 49545720. Its totient is φ = 28311744.
The previous prime is 38338879. The next prime is 38338889. The reversal of 38338885 is 58883383.
It can be written as a sum of positive squares in 4 ways, for example, as 10404 + 38328481 = 102^2 + 6191^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 38338885 - 29 = 38338373 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38338889) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294850 + ... + 294979.
It is an arithmetic number, because the mean of its divisors is an integer number (6193215).
Almost surely, 238338885 is an apocalyptic number.
It is an amenable number.
38338885 is a deficient number, since it is larger than the sum of its proper divisors (11206835).
38338885 is a wasteful number, since it uses less digits than its factorization.
38338885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 589847.
The product of its digits is 552960, while the sum is 46.
The square root of 38338885 is about 6191.8401949663. The cubic root of 38338885 is about 337.1939905737.
The spelling of 38338885 in words is "thirty-eight million, three hundred thirty-eight thousand, eight hundred eighty-five".
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