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199998107 is a prime number
BaseRepresentation
bin10111110101110…
…11101010011011
3111221022221211022
423322323222123
5402144414412
631502353055
74645645601
oct1372735233
9457287738
10199998107
11a29915a1
1256b8b78b
133258649a
141c7c1871
1512858a72
hexbebba9b

199998107 has 2 divisors, whose sum is σ = 199998108. Its totient is φ = 199998106.

The previous prime is 199998089. The next prime is 199998131. The reversal of 199998107 is 701899991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199998107 - 28 = 199997851 is a prime.

It is not a weakly prime, because it can be changed into another prime (199998157) 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, 99999053 + 99999054.

It is an arithmetic number, because the mean of its divisors is an integer number (99999054).

Almost surely, 2199998107 is an apocalyptic number.

199998107 is a deficient number, since it is larger than the sum of its proper divisors (1).

199998107 is an equidigital number, since it uses as much as digits as its factorization.

199998107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 53.

The square root of 199998107 is about 14142.0686959157. The cubic root of 199998107 is about 584.8017025816.

The spelling of 199998107 in words is "one hundred ninety-nine million, nine hundred ninety-eight thousand, one hundred seven".