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19838093 = 114341941
BaseRepresentation
bin100101110101…
…1010010001101
31101022212202012
41023223102031
520034304333
61545111005
7330423002
oct113532215
941285665
1019838093
111021a720
126788465
134157822
1428c58a9
151b1ce48
hex12eb48d

19838093 has 8 divisors (see below), whose sum is σ = 22145376. Its totient is φ = 17614800.

The previous prime is 19838081. The next prime is 19838113. The reversal of 19838093 is 39083891.

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 19838093 - 212 = 19833997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19838093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19838003) 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, 20498 + ... + 21443.

It is an arithmetic number, because the mean of its divisors is an integer number (2768172).

Almost surely, 219838093 is an apocalyptic number.

It is an amenable number.

19838093 is a deficient number, since it is larger than the sum of its proper divisors (2307283).

19838093 is a wasteful number, since it uses less digits than its factorization.

19838093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41995.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 19838093 is about 4453.9974180504. The cubic root of 19838093 is about 270.7073041610.

The spelling of 19838093 in words is "nineteen million, eight hundred thirty-eight thousand, ninety-three".

Divisors: 1 11 43 473 41941 461351 1803463 19838093