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199333938 = 23107310489
BaseRepresentation
bin10111110000110…
…01100000110010
3111220002012202110
423320121200302
5402012141223
631440230150
74640211336
oct1370314062
9456065673
10199333938
11a25785a1
125690b356
13323b309b
141c68b7c6
1512776d93
hexbe19832

199333938 has 16 divisors (see below), whose sum is σ = 402395040. Its totient is φ = 65823456.

The previous prime is 199333931. The next prime is 199333957. The reversal of 199333938 is 839333991.

199333938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (199333931) 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 7 ways as a sum of consecutive naturals, for example, 154603 + ... + 155886.

It is an arithmetic number, because the mean of its divisors is an integer number (25149690).

Almost surely, 2199333938 is an apocalyptic number.

199333938 is an abundant number, since it is smaller than the sum of its proper divisors (203061102).

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

199333938 is a wasteful number, since it uses less digits than its factorization.

199333938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310601.

The product of its digits is 472392, while the sum is 48.

The square root of 199333938 is about 14118.5671369300. The cubic root of 199333938 is about 584.1536332680.

It can be divided in two parts, 19933 and 3938, that added together give a triangular number (23871 = T218).

The spelling of 199333938 in words is "one hundred ninety-nine million, three hundred thirty-three thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 107 214 321 642 310489 620978 931467 1862934 33222323 66444646 99666969 199333938