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199089190 = 2519908919
BaseRepresentation
bin10111101110111…
…01110000100110
3111212121210000201
423313131300212
5401431323230
631431101114
74635141646
oct1367356046
9455553021
10199089190
11a2420723
125681179a
1332328871
141c626526
15127295ca
hexbdddc26

199089190 has 8 divisors (see below), whose sum is σ = 358360560. Its totient is φ = 79635672.

The previous prime is 199089169. The next prime is 199089197. The reversal of 199089190 is 91980991.

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

It is a super-2 number, since 2×1990891902 = 79273011149712200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199089190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199089197) 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, 9954450 + ... + 9954469.

It is an arithmetic number, because the mean of its divisors is an integer number (44795070).

Almost surely, 2199089190 is an apocalyptic number.

199089190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199089190 is a deficient number, since it is larger than the sum of its proper divisors (159271370).

199089190 is a wasteful number, since it uses less digits than its factorization.

199089190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19908926.

The product of its (nonzero) digits is 52488, while the sum is 46.

The square root of 199089190 is about 14109.8968812674. The cubic root of 199089190 is about 583.9144550842.

The spelling of 199089190 in words is "one hundred ninety-nine million, eighty-nine thousand, one hundred ninety".

Divisors: 1 2 5 10 19908919 39817838 99544595 199089190