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64196129 is a prime number
BaseRepresentation
bin1111010011100…
…0111000100001
311110210111112102
43310320320201
5112413234004
610211540145
71406441504
oct364707041
9143714472
1064196129
1133267558
12195ba655
13103b8b9a
14875113b
15598111e
hex3d38e21

64196129 has 2 divisors, whose sum is σ = 64196130. Its totient is φ = 64196128.

The previous prime is 64196123. The next prime is 64196137. The reversal of 64196129 is 92169146.

64196129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54051904 + 10144225 = 7352^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 64196129 - 212 = 64192033 is a prime.

It is a super-2 number, since 2×641961292 = 8242285957169282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64196092 and 64196101.

It is not a weakly prime, because it can be changed into another prime (64196123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32098064 + 32098065.

It is an arithmetic number, because the mean of its divisors is an integer number (32098065).

Almost surely, 264196129 is an apocalyptic number.

It is an amenable number.

64196129 is a deficient number, since it is larger than the sum of its proper divisors (1).

64196129 is an equidigital number, since it uses as much as digits as its factorization.

64196129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 64196129 is about 8012.2486856063. The cubic root of 64196129 is about 400.4081854033.

The spelling of 64196129 in words is "sixty-four million, one hundred ninety-six thousand, one hundred twenty-nine".