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38393013 = 3293711927
BaseRepresentation
bin1001001001110…
…1010010110101
32200020120022110
42102131102311
534312034023
63450521233
7644222661
oct222352265
980216273
1038393013
111a74326a
1210a36219
137c53279
1451558a1
153585a93
hex249d4b5

38393013 has 16 divisors (see below), whose sum is σ = 54391680. Its totient is φ = 24042816.

The previous prime is 38393009. The next prime is 38393057. The reversal of 38393013 is 31039383.

38393013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38393013 - 22 = 38393009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38393083) 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 15 ways as a sum of consecutive naturals, for example, 2745 + ... + 9182.

It is an arithmetic number, because the mean of its divisors is an integer number (3399480).

Almost surely, 238393013 is an apocalyptic number.

It is an amenable number.

38393013 is a deficient number, since it is larger than the sum of its proper divisors (15998667).

38393013 is a wasteful number, since it uses less digits than its factorization.

38393013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11996.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 38393013 is about 6196.2095671467. The cubic root of 38393013 is about 337.3526028516.

The spelling of 38393013 in words is "thirty-eight million, three hundred ninety-three thousand, thirteen".

Divisors: 1 3 29 37 87 111 1073 3219 11927 35781 345883 441299 1037649 1323897 12797671 38393013