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38420268 = 2233201689
BaseRepresentation
bin1001001010001…
…1111100101100
32200021221200220
42102203330230
534313422033
63451251340
7644365305
oct222437454
980257626
1038420268
111a761797
1210a49b50
137c627b3
1451617ac
15358dbb3
hex24a3f2c

38420268 has 12 divisors (see below), whose sum is σ = 89647320. Its totient is φ = 12806752.

The previous prime is 38420267. The next prime is 38420293. The reversal of 38420268 is 86202483.

38420268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×384202683 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (38420267) 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 3 ways as a sum of consecutive naturals, for example, 1600833 + ... + 1600856.

It is an arithmetic number, because the mean of its divisors is an integer number (7470610).

Almost surely, 238420268 is an apocalyptic number.

It is an amenable number.

38420268 is an abundant number, since it is smaller than the sum of its proper divisors (51227052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38420268 is a wasteful number, since it uses less digits than its factorization.

38420268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201696 (or 3201694 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 38420268 is about 6198.4085054149. The cubic root of 38420268 is about 337.4324122545.

The spelling of 38420268 in words is "thirty-eight million, four hundred twenty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 3201689 6403378 9605067 12806756 19210134 38420268