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68147201 is a prime number
BaseRepresentation
bin1000000111111…
…01100000000001
311202020020101102
410003331200001
5114421202301
610432344145
71455145613
oct403754001
9152206342
1068147201
1135516001
121a9a5055
13111703b5
14909cdb3
155eb1b6b
hex40fd801

68147201 has 2 divisors, whose sum is σ = 68147202. Its totient is φ = 68147200.

The previous prime is 68147197. The next prime is 68147213. The reversal of 68147201 is 10274186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51825601 + 16321600 = 7199^2 + 4040^2 .

It is a cyclic number.

It is not a de Polignac number, because 68147201 - 22 = 68147197 is a prime.

It is not a weakly prime, because it can be changed into another prime (68147221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34073600 + 34073601.

It is an arithmetic number, because the mean of its divisors is an integer number (34073601).

Almost surely, 268147201 is an apocalyptic number.

It is an amenable number.

68147201 is a deficient number, since it is larger than the sum of its proper divisors (1).

68147201 is an equidigital number, since it uses as much as digits as its factorization.

68147201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 68147201 is about 8255.1317978576. The cubic root of 68147201 is about 408.4598193559.

The spelling of 68147201 in words is "sixty-eight million, one hundred forty-seven thousand, two hundred one".