Search a number
-
+
7085405497 is a prime number
BaseRepresentation
bin1101001100101001…
…01011010100111001
3200021210102220002211
412212110223110321
5104002330433442
63131024455121
7340403644612
oct64624532471
920253386084
107085405497
113006588025
121458a7a4a1
1388bc09841
144b302cc09
152b7089617
hex1a652b539

7085405497 has 2 divisors, whose sum is σ = 7085405498. Its totient is φ = 7085405496.

The previous prime is 7085405471. The next prime is 7085405527. The reversal of 7085405497 is 7945045807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6810210576 + 275194921 = 82524^2 + 16589^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7085405497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7085405497.

It is not a weakly prime, because it can be changed into another prime (7085405597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3542702748 + 3542702749.

It is an arithmetic number, because the mean of its divisors is an integer number (3542702749).

Almost surely, 27085405497 is an apocalyptic number.

It is an amenable number.

7085405497 is a deficient number, since it is larger than the sum of its proper divisors (1).

7085405497 is an equidigital number, since it uses as much as digits as its factorization.

7085405497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 7085405497 is about 84174.8507393984. The cubic root of 7085405497 is about 1920.6795100097.

The spelling of 7085405497 in words is "seven billion, eighty-five million, four hundred five thousand, four hundred ninety-seven".