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68280083 is a prime number
BaseRepresentation
bin1000001000111…
…01111100010011
311202110222122222
410010131330103
5114434430313
610435251255
71456241204
oct404357423
9152428588
1068280083
11355a6923
121aa49b2b
13111b8a21
1490d55ab
155edb208
hex411df13

68280083 has 2 divisors, whose sum is σ = 68280084. Its totient is φ = 68280082.

The previous prime is 68280071. The next prime is 68280097. The reversal of 68280083 is 38008286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68280083 - 24 = 68280067 is a prime.

It is not a weakly prime, because it can be changed into another prime (68285083) 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, 34140041 + 34140042.

It is an arithmetic number, because the mean of its divisors is an integer number (34140042).

Almost surely, 268280083 is an apocalyptic number.

68280083 is a deficient number, since it is larger than the sum of its proper divisors (1).

68280083 is an equidigital number, since it uses as much as digits as its factorization.

68280083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 68280083 is about 8263.1763263288. The cubic root of 68280083 is about 408.7251357905.

The spelling of 68280083 in words is "sixty-eight million, two hundred eighty thousand, eighty-three".