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198808201 is a prime number
BaseRepresentation
bin10111101100110…
…01001010001001
3111212002111120201
423312121022021
5401343330301
631421052201
74632561514
oct1366311211
9455074521
10198808201
11a22495a9
12566b7061
133225a9b7
141c591d7b
15126c1201
hexbd99289

198808201 has 2 divisors, whose sum is σ = 198808202. Its totient is φ = 198808200.

The previous prime is 198808187. The next prime is 198808223. The reversal of 198808201 is 102808891.

198808201 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 can be written as a sum of positive squares in only one way, i.e., 189778176 + 9030025 = 13776^2 + 3005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-198808201 is a prime.

It is not a weakly prime, because it can be changed into another prime (198808241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99404100 + 99404101.

It is an arithmetic number, because the mean of its divisors is an integer number (99404101).

Almost surely, 2198808201 is an apocalyptic number.

It is an amenable number.

198808201 is a deficient number, since it is larger than the sum of its proper divisors (1).

198808201 is an equidigital number, since it uses as much as digits as its factorization.

198808201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 198808201 is about 14099.9362055294. The cubic root of 198808201 is about 583.6396188177.

The spelling of 198808201 in words is "one hundred ninety-eight million, eight hundred eight thousand, two hundred one".