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30000386197 is a prime number
BaseRepresentation
bin11011111100001010…
…011001000010010101
32212102210000112010201
4123330022121002111
5442420044324242
621440524220501
72111303034535
oct337412310225
985383015121
1030000386197
11117a5488201
12599309a731
132aa149bb12
1416485094c5
15ba8ba34b7
hex6fc299095

30000386197 has 2 divisors, whose sum is σ = 30000386198. Its totient is φ = 30000386196.

The previous prime is 30000386189. The next prime is 30000386231. The reversal of 30000386197 is 79168300003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25154277201 + 4846108996 = 158601^2 + 69614^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000386197 - 23 = 30000386189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30000386147) 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, 15000193098 + 15000193099.

It is an arithmetic number, because the mean of its divisors is an integer number (15000193099).

Almost surely, 230000386197 is an apocalyptic number.

It is an amenable number.

30000386197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000386197 is an equidigital number, since it uses as much as digits as its factorization.

30000386197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 30000386197 in words is "thirty billion, three hundred eighty-six thousand, one hundred ninety-seven".