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3993188 = 223726981
BaseRepresentation
bin1111001110111001100100
321111212121212
433032321210
52010240223
6221330552
745640643
oct17167144
97455555
103993188
112288161
121406a58
13a9a744
1475d35a
1553d278
hex3cee64

3993188 has 12 divisors (see below), whose sum is σ = 7177212. Its totient is φ = 1942560.

The previous prime is 3993161. The next prime is 3993193. The reversal of 3993188 is 8813993.

It can be written as a sum of positive squares in 2 ways, for example, as 2010724 + 1982464 = 1418^2 + 1408^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13343 + ... + 13638.

It is an arithmetic number, because the mean of its divisors is an integer number (598101).

Almost surely, 23993188 is an apocalyptic number.

It is an amenable number.

3993188 is a deficient number, since it is larger than the sum of its proper divisors (3184024).

3993188 is a wasteful number, since it uses less digits than its factorization.

3993188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27022 (or 27020 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 3993188 is about 1998.2962743297. The cubic root of 3993188 is about 158.6499425287.

The spelling of 3993188 in words is "three million, nine hundred ninety-three thousand, one hundred eighty-eight".

Divisors: 1 2 4 37 74 148 26981 53962 107924 998297 1996594 3993188