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38387011 = 1319155413
BaseRepresentation
bin1001001001101…
…1110101000011
32200020021002011
42102123311003
534311341021
63450433351
7644166325
oct222336503
980207064
1038387011
111a739803
1210a32857
137c50610
145153615
153583de1
hex249bd43

38387011 has 8 divisors (see below), whose sum is σ = 43515920. Its totient is φ = 33568992.

The previous prime is 38386991. The next prime is 38387017. The reversal of 38387011 is 11078383.

38387011 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 a cyclic number.

It is not a de Polignac number, because 38387011 - 25 = 38386979 is a prime.

It is a super-2 number, since 2×383870112 = 2947125227028242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38387017) 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, 77460 + ... + 77953.

It is an arithmetic number, because the mean of its divisors is an integer number (5439490).

Almost surely, 238387011 is an apocalyptic number.

38387011 is a deficient number, since it is larger than the sum of its proper divisors (5128909).

38387011 is a wasteful number, since it uses less digits than its factorization.

38387011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155445.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 38387011 is about 6195.7252198593. The cubic root of 38387011 is about 337.3350224320.

The spelling of 38387011 in words is "thirty-eight million, three hundred eighty-seven thousand, eleven".

Divisors: 1 13 19 247 155413 2020369 2952847 38387011