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199362689 = 1723509879
BaseRepresentation
bin10111110001000…
…00100010000001
3111220010200012022
423320200202001
5402014101224
631441011225
74640361221
oct1370404201
9456120168
10199362689
11a2598159
1256923b15
13323c31b6
141c698081
151278065e
hexbe20881

199362689 has 8 divisors (see below), whose sum is σ = 220268160. Its totient is φ = 179477056.

The previous prime is 199362661. The next prime is 199362719. The reversal of 199362689 is 986263991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-199362689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199362689.

It is not an unprimeable number, because it can be changed into a prime (199362619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254549 + ... + 255330.

It is an arithmetic number, because the mean of its divisors is an integer number (27533520).

Almost surely, 2199362689 is an apocalyptic number.

It is an amenable number.

199362689 is a deficient number, since it is larger than the sum of its proper divisors (20905471).

199362689 is a wasteful number, since it uses less digits than its factorization.

199362689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509919.

The product of its digits is 1259712, while the sum is 53.

The square root of 199362689 is about 14119.5852984427. The cubic root of 199362689 is about 584.1817171188.

The spelling of 199362689 in words is "one hundred ninety-nine million, three hundred sixty-two thousand, six hundred eighty-nine".

Divisors: 1 17 23 391 509879 8667943 11727217 199362689