Search a number
-
+
6494085197 is a prime number
BaseRepresentation
bin1100000110001001…
…11110000001001101
3121202120202201010222
412003010332001031
5101244441211242
62552222441125
7316633545665
oct60304760115
917676681128
106494085197
112832818366
121312a331a5
137c655c882
144586a51a5
152801d35d2
hex18313e04d

6494085197 has 2 divisors, whose sum is σ = 6494085198. Its totient is φ = 6494085196.

The previous prime is 6494085179. The next prime is 6494085239. The reversal of 6494085197 is 7915804946.

Together with previous prime (6494085179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6456765316 + 37319881 = 80354^2 + 6109^2 .

It is a cyclic number.

It is not a de Polignac number, because 6494085197 - 26 = 6494085133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6494085137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3247042598 + 3247042599.

It is an arithmetic number, because the mean of its divisors is an integer number (3247042599).

Almost surely, 26494085197 is an apocalyptic number.

It is an amenable number.

6494085197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6494085197 is an equidigital number, since it uses as much as digits as its factorization.

6494085197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 6494085197 is about 80585.8870832852. The cubic root of 6494085197 is about 1865.6893279455.

The spelling of 6494085197 in words is "six billion, four hundred ninety-four million, eighty-five thousand, one hundred ninety-seven".