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4019393 = 71947643
BaseRepresentation
bin1111010101010011000001
321120012120102
433111103001
52012110033
6222052145
746110230
oct17252301
97505512
104019393
1122a5914
12141a055
13aa9651
14768b17
15545de8
hex3d54c1

4019393 has 16 divisors (see below), whose sum is σ = 4945920. Its totient is φ = 3189456.

The previous prime is 4019387. The next prime is 4019401. The reversal of 4019393 is 3939104.

4019393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4019393 - 24 = 4019377 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4019363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5930 + ... + 6572.

It is an arithmetic number, because the mean of its divisors is an integer number (309120).

Almost surely, 24019393 is an apocalyptic number.

It is an amenable number.

4019393 is a deficient number, since it is larger than the sum of its proper divisors (926527).

4019393 is a wasteful number, since it uses less digits than its factorization.

4019393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 4019393 is about 2004.8423878201. The cubic root of 4019393 is about 158.9962289627.

The spelling of 4019393 in words is "four million, nineteen thousand, three hundred ninety-three".

Divisors: 1 7 19 47 133 329 643 893 4501 6251 12217 30221 85519 211547 574199 4019393