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19235830841 = 128411498001
BaseRepresentation
bin10001111010100010…
…110111110000111001
31211122120121110020022
4101322202313300321
5303343333041331
612500430340225
71250452602323
oct217242676071
954576543208
1019235830841
118181141467
12388a05a675
131a7728ba36
14d06a06613
15778b2067b
hex47a8b7c39

19235830841 has 4 divisors (see below), whose sum is σ = 19237341684. Its totient is φ = 19234320000.

The previous prime is 19235830777. The next prime is 19235830891. The reversal of 19235830841 is 14803853291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3253561600 + 15982269241 = 57040^2 + 126421^2 .

It is a cyclic number.

It is not a de Polignac number, because 19235830841 - 26 = 19235830777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19235830792 and 19235830801.

It is not an unprimeable number, because it can be changed into a prime (19235830891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736160 + ... + 761841.

It is an arithmetic number, because the mean of its divisors is an integer number (4809335421).

Almost surely, 219235830841 is an apocalyptic number.

It is an amenable number.

19235830841 is a deficient number, since it is larger than the sum of its proper divisors (1510843).

19235830841 is a wasteful number, since it uses less digits than its factorization.

19235830841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510842.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 19235830841 in words is "nineteen billion, two hundred thirty-five million, eight hundred thirty thousand, eight hundred forty-one".

Divisors: 1 12841 1498001 19235830841