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199964573 is a prime number
BaseRepresentation
bin10111110101100…
…11011110011101
3111221021020211022
423322303132131
5402142331243
631501533525
74645446044
oct1372633635
9457236738
10199964573
11a2969386
1256b742a5
1332574143
141c7b355b
151284db68
hexbeb379d

199964573 has 2 divisors, whose sum is σ = 199964574. Its totient is φ = 199964572.

The previous prime is 199964537. The next prime is 199964587. The reversal of 199964573 is 375469991.

It is a happy number.

Together with previous prime (199964537) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115820644 + 84143929 = 10762^2 + 9173^2 .

It is a cyclic number.

It is not a de Polignac number, because 199964573 - 222 = 195770269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199964473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99982286 + 99982287.

It is an arithmetic number, because the mean of its divisors is an integer number (99982287).

Almost surely, 2199964573 is an apocalyptic number.

It is an amenable number.

199964573 is a deficient number, since it is larger than the sum of its proper divisors (1).

199964573 is an equidigital number, since it uses as much as digits as its factorization.

199964573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 53.

The square root of 199964573 is about 14140.8830346623. The cubic root of 199964573 is about 584.7690158781.

The spelling of 199964573 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, five hundred seventy-three".