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166679 is a prime number
BaseRepresentation
bin101000101100010111
322110122022
4220230113
520313204
63323355
71262642
oct505427
9273568
10166679
11104257
128055b
135ab36
1444a59
15345be
hex28b17

166679 has 2 divisors, whose sum is σ = 166680. Its totient is φ = 166678.

The previous prime is 166669. The next prime is 166693. The reversal of 166679 is 976661.

It is a happy number.

166679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-166679 is a prime.

It is a Chen prime.

It is a plaindrome in base 10 and base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83339 + 83340.

It is an arithmetic number, because the mean of its divisors is an integer number (83340).

2166679 is an apocalyptic number.

166679 is a deficient number, since it is larger than the sum of its proper divisors (1).

166679 is an equidigital number, since it uses as much as digits as its factorization.

166679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 166679 is about 408.2633953712. The cubic root of 166679 is about 55.0334782404.

The spelling of 166679 in words is "one hundred sixty-six thousand, six hundred seventy-nine".