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68388701 is a prime number
BaseRepresentation
bin1000001001110…
…00011101011101
311202200111122212
410010320131131
5120001414301
610441450205
71460202653
oct404703535
9152614585
1068388701
1135670497
121aaa0965
13112262b4
149122dd3
15600d4bb
hex413875d

68388701 has 2 divisors, whose sum is σ = 68388702. Its totient is φ = 68388700.

The previous prime is 68388689. The next prime is 68388743. The reversal of 68388701 is 10788386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48372025 + 20016676 = 6955^2 + 4474^2 .

It is a cyclic number.

It is not a de Polignac number, because 68388701 - 210 = 68387677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68388781) 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, 34194350 + 34194351.

It is an arithmetic number, because the mean of its divisors is an integer number (34194351).

Almost surely, 268388701 is an apocalyptic number.

It is an amenable number.

68388701 is a deficient number, since it is larger than the sum of its proper divisors (1).

68388701 is an equidigital number, since it uses as much as digits as its factorization.

68388701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 68388701 is about 8269.7461266958. The cubic root of 68388701 is about 408.9417503820.

The spelling of 68388701 in words is "sixty-eight million, three hundred eighty-eight thousand, seven hundred one".