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199043208 = 2332713171787
BaseRepresentation
bin10111101110100…
…10100010001000
3111212112102221200
423313102202020
5401423340313
631430104200
74634560620
oct1367224210
9455472850
10199043208
11a239a121
12567ab060
1332310960
141c613880
151271ab73
hexbdd2888

199043208 has 192 divisors, whose sum is σ = 702898560. Its totient is φ = 49379328.

The previous prime is 199043203. The next prime is 199043287. The reversal of 199043208 is 802340991.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (199043203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110491 + ... + 112277.

It is an arithmetic number, because the mean of its divisors is an integer number (3660930).

Almost surely, 2199043208 is an apocalyptic number.

199043208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199043208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351449280).

199043208 is an abundant number, since it is smaller than the sum of its proper divisors (503855352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199043208 is a wasteful number, since it uses less digits than its factorization.

199043208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 199043208 is about 14108.2673635000. The cubic root of 199043208 is about 583.8694976428.

The spelling of 199043208 in words is "one hundred ninety-nine million, forty-three thousand, two hundred eight".