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20310841 is a prime number
BaseRepresentation
bin100110101111…
…0101100111001
31102012220020101
41031132230321
520144421331
62003155401
7334432165
oct115365471
942186211
1020310841
1110512921
126975b61
134291a65
1429a9ca5
151bb3061
hex135eb39

20310841 has 2 divisors, whose sum is σ = 20310842. Its totient is φ = 20310840.

The previous prime is 20310833. The next prime is 20310877. The reversal of 20310841 is 14801302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10725625 + 9585216 = 3275^2 + 3096^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310841 - 23 = 20310833 is a prime.

It is not a weakly prime, because it can be changed into another prime (20310341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155420 + 10155421.

It is an arithmetic number, because the mean of its divisors is an integer number (10155421).

Almost surely, 220310841 is an apocalyptic number.

It is an amenable number.

20310841 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310841 is an equidigital number, since it uses as much as digits as its factorization.

20310841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 20310841 is about 4506.7550410467. The cubic root of 20310841 is about 272.8407923752.

The spelling of 20310841 in words is "twenty million, three hundred ten thousand, eight hundred forty-one".