Base | Representation |
---|---|
bin | 1001001000111… |
… | …0001000001010 |
3 | 2200010102002121 |
4 | 2102032020022 |
5 | 34303042030 |
6 | 3445321454 |
7 | 643543603 |
oct | 222161012 |
9 | 80112077 |
10 | 38330890 |
11 | 1a700624 |
12 | 10a0628a |
13 | 7c30c00 |
14 | 513adaa |
15 | 357247a |
hex | 248e20a |
38330890 has 48 divisors (see below), whose sum is σ = 76855608. Its totient is φ = 13747968.
The previous prime is 38330867. The next prime is 38330891. The reversal of 38330890 is 9803383.
It is a happy number.
It can be written as a sum of positive squares in 12 ways, for example, as 1595169 + 36735721 = 1263^2 + 6061^2 .
It is not an unprimeable number, because it can be changed into a prime (38330891) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62224 + ... + 62836.
Almost surely, 238330890 is an apocalyptic number.
38330890 is an abundant number, since it is smaller than the sum of its proper divisors (38524718).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38330890 is a wasteful number, since it uses less digits than its factorization.
38330890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 683 (or 670 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 34.
The square root of 38330890 is about 6191.1945535575. The cubic root of 38330890 is about 337.1705500262.
The spelling of 38330890 in words is "thirty-eight million, three hundred thirty thousand, eight hundred ninety".
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