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19481841 = 3221110259
BaseRepresentation
bin100101001010…
…0010011110001
31100122210001200
41022110103301
514441404331
61533321413
7324410241
oct112242361
940583050
1019481841
11aaa6aa5
126636269
134061622
142831b21
151a9c5e6
hex12944f1

19481841 has 12 divisors (see below), whose sum is σ = 28276560. Its totient is φ = 12925080.

The previous prime is 19481837. The next prime is 19481849. The reversal of 19481841 is 14818491.

It is not a de Polignac number, because 19481841 - 22 = 19481837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19481796 and 19481805.

It is not an unprimeable number, because it can be changed into a prime (19481849) 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 11 ways as a sum of consecutive naturals, for example, 3231 + ... + 7028.

It is an arithmetic number, because the mean of its divisors is an integer number (2356380).

Almost surely, 219481841 is an apocalyptic number.

It is an amenable number.

19481841 is a deficient number, since it is larger than the sum of its proper divisors (8794719).

19481841 is a wasteful number, since it uses less digits than its factorization.

19481841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476 (or 10473 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 19481841 is about 4413.8238523983. The cubic root of 19481841 is about 269.0770544357.

The spelling of 19481841 in words is "nineteen million, four hundred eighty-one thousand, eight hundred forty-one".

Divisors: 1 3 9 211 633 1899 10259 30777 92331 2164649 6493947 19481841