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68742701 is a prime number
BaseRepresentation
bin1000001100011…
…10111000101101
311210100111020222
410012032320231
5120044231301
610453221125
71463206016
oct406167055
9153314228
1068742701
1135892455
121b0317a5
131131b471
1491b600d
15607d31b
hex418ee2d

68742701 has 2 divisors, whose sum is σ = 68742702. Its totient is φ = 68742700.

The previous prime is 68742671. The next prime is 68742743. The reversal of 68742701 is 10724786.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65189476 + 3553225 = 8074^2 + 1885^2 .

It is a cyclic number.

It is not a de Polignac number, because 68742701 - 218 = 68480557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68742601) 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, 34371350 + 34371351.

It is an arithmetic number, because the mean of its divisors is an integer number (34371351).

Almost surely, 268742701 is an apocalyptic number.

It is an amenable number.

68742701 is a deficient number, since it is larger than the sum of its proper divisors (1).

68742701 is an equidigital number, since it uses as much as digits as its factorization.

68742701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 68742701 is about 8291.1218179448. The cubic root of 68742701 is about 409.6461372698.

The spelling of 68742701 in words is "sixty-eight million, seven hundred forty-two thousand, seven hundred one".