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68485229 is a prime number
BaseRepresentation
bin1000001010100…
…00000001101101
311202212102001222
410011100001231
5120013011404
610443513125
71461054251
oct405200155
9152772058
1068485229
1135726a6a
121ab287a5
131125b207
14914a261
15602bdbe
hex415006d

68485229 has 2 divisors, whose sum is σ = 68485230. Its totient is φ = 68485228.

The previous prime is 68485213. The next prime is 68485273. The reversal of 68485229 is 92258486.

It is an a-pointer prime, because the next prime (68485273) can be obtained adding 68485229 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 9604 = 8275^2 + 98^2 .

It is a cyclic number.

It is not a de Polignac number, because 68485229 - 24 = 68485213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68485229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68485289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34242614 + 34242615.

It is an arithmetic number, because the mean of its divisors is an integer number (34242615).

Almost surely, 268485229 is an apocalyptic number.

It is an amenable number.

68485229 is a deficient number, since it is larger than the sum of its proper divisors (1).

68485229 is an equidigital number, since it uses as much as digits as its factorization.

68485229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 44.

The square root of 68485229 is about 8275.5802817688. The cubic root of 68485229 is about 409.1340617390.

The spelling of 68485229 in words is "sixty-eight million, four hundred eighty-five thousand, two hundred twenty-nine".