Base | Representation |
---|---|
bin | 1001010000101… |
… | …0000101011100 |
3 | 2201002012120102 |
4 | 2110022011130 |
5 | 34420313440 |
6 | 3504240232 |
7 | 651060062 |
oct | 224120534 |
9 | 81065512 |
10 | 38838620 |
11 | 1aa18037 |
12 | 11010078 |
13 | 807b042 |
14 | 5230032 |
15 | 3622b15 |
hex | 250a15c |
38838620 has 12 divisors (see below), whose sum is σ = 81561144. Its totient is φ = 15535440.
The previous prime is 38838619. The next prime is 38838623. The reversal of 38838620 is 2683883.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38838623) 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, 970946 + ... + 970985.
It is an arithmetic number, because the mean of its divisors is an integer number (6796762).
Almost surely, 238838620 is an apocalyptic number.
It is an amenable number.
38838620 is an abundant number, since it is smaller than the sum of its proper divisors (42722524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38838620 is a wasteful number, since it uses less digits than its factorization.
38838620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1941940 (or 1941938 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 38.
The square root of 38838620 is about 6232.0638636009. The cubic root of 38838620 is about 338.6527423302.
The spelling of 38838620 in words is "thirty-eight million, eight hundred thirty-eight thousand, six hundred twenty".
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