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199084190 = 2519908419
BaseRepresentation
bin10111101110111…
…00100010011110
3111212121112011112
423313130202132
5401431143230
631431022022
74635121244
oct1367344236
9455545145
10199084190
11a2417998
125680a912
13323264c6
141c624794
1512727d95
hexbddc89e

199084190 has 8 divisors (see below), whose sum is σ = 358351560. Its totient is φ = 79633672.

The previous prime is 199084183. The next prime is 199084199. The reversal of 199084190 is 91480991.

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

It is a super-2 number, since 2×1990841902 = 79269029415912200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199084199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9954200 + ... + 9954219.

It is an arithmetic number, because the mean of its divisors is an integer number (44793945).

Almost surely, 2199084190 is an apocalyptic number.

199084190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199084190 is a deficient number, since it is larger than the sum of its proper divisors (159267370).

199084190 is a wasteful number, since it uses less digits than its factorization.

199084190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19908426.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 199084190 is about 14109.7196995546. The cubic root of 199084190 is about 583.9095668283.

The spelling of 199084190 in words is "one hundred ninety-nine million, eighty-four thousand, one hundred ninety".

Divisors: 1 2 5 10 19908419 39816838 99542095 199084190