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8081308049 is a prime number
BaseRepresentation
bin1111000011010111…
…01111100110010001
3202212012101222120112
413201223233212101
5113022303324144
63413522251105
7404155661603
oct74153574621
922765358515
108081308049
113477762391
1216964b6a95
139ba3409a9
145693d1173
1532470b99e
hex1e1aef991

8081308049 has 2 divisors, whose sum is σ = 8081308050. Its totient is φ = 8081308048.

The previous prime is 8081308013. The next prime is 8081308061. The reversal of 8081308049 is 9408031808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7524348049 + 556960000 = 86743^2 + 23600^2 .

It is a cyclic number.

It is not a de Polignac number, because 8081308049 - 216 = 8081242513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8081307997 and 8081308015.

It is not a weakly prime, because it can be changed into another prime (8081308549) 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 as a sum of consecutive naturals, namely, 4040654024 + 4040654025.

It is an arithmetic number, because the mean of its divisors is an integer number (4040654025).

Almost surely, 28081308049 is an apocalyptic number.

It is an amenable number.

8081308049 is a deficient number, since it is larger than the sum of its proper divisors (1).

8081308049 is an equidigital number, since it uses as much as digits as its factorization.

8081308049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8081308049 is about 89896.0958495974. The cubic root of 8081308049 is about 2006.7528446334.

The spelling of 8081308049 in words is "eight billion, eighty-one million, three hundred eight thousand, forty-nine".