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199982017 = 325961363
BaseRepresentation
bin10111110101101…
…11101111000001
3111221022010202101
423322313233001
5402143411032
631502150401
74645550644
oct1372675701
9457263671
10199982017
11a29804a4
1256b82401
133257c071
141c7b9a5b
1512853de7
hexbeb7bc1

199982017 has 4 divisors (see below), whose sum is σ = 200046640. Its totient is φ = 199917396.

The previous prime is 199981997. The next prime is 199982063. The reversal of 199982017 is 710289991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199982017 - 27 = 199981889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199980017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27423 + ... + 33940.

It is an arithmetic number, because the mean of its divisors is an integer number (50011660).

Almost surely, 2199982017 is an apocalyptic number.

It is an amenable number.

199982017 is a deficient number, since it is larger than the sum of its proper divisors (64623).

199982017 is an equidigital number, since it uses as much as digits as its factorization.

199982017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64622.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 199982017 is about 14141.4998143761. The cubic root of 199982017 is about 584.7860195802.

The spelling of 199982017 in words is "one hundred ninety-nine million, nine hundred eighty-two thousand, seventeen".

Divisors: 1 3259 61363 199982017