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68300173 is a prime number
BaseRepresentation
bin1000001001000…
…10110110001101
311202112000020001
410010202312031
5114441101143
610435524301
71456353604
oct404426615
9152460201
1068300173
113560aa27
121aa59691
13111c4c06
1490dca3b
155ee214d
hex4122d8d

68300173 has 2 divisors, whose sum is σ = 68300174. Its totient is φ = 68300172.

The previous prime is 68300171. The next prime is 68300189. The reversal of 68300173 is 37100386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65334889 + 2965284 = 8083^2 + 1722^2 .

It is a cyclic number.

It is not a de Polignac number, because 68300173 - 21 = 68300171 is a prime.

Together with 68300171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68300171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34150086 + 34150087.

It is an arithmetic number, because the mean of its divisors is an integer number (34150087).

Almost surely, 268300173 is an apocalyptic number.

It is an amenable number.

68300173 is a deficient number, since it is larger than the sum of its proper divisors (1).

68300173 is an equidigital number, since it uses as much as digits as its factorization.

68300173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 68300173 is about 8264.3918711542. The cubic root of 68300173 is about 408.7652181611.

The spelling of 68300173 in words is "sixty-eight million, three hundred thousand, one hundred seventy-three".