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6938046189 = 3215717532801
BaseRepresentation
bin1100111011000101…
…00010111011101101
3122220112011021010200
412131202202323231
5103202114434224
63104242224113
7333634263624
oct63542427355
918815137120
106938046189
112a40389878
121417655039
13867523899
1449b6306bb
152a917c5c9
hex19d8a2eed

6938046189 has 24 divisors (see below), whose sum is σ = 10094810232. Its totient is φ = 4591641600.

The previous prime is 6938046187. The next prime is 6938046197. The reversal of 6938046189 is 9816408396.

6938046189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1988100 + 6936058089 = 1410^2 + 83283^2 .

It is not a de Polignac number, because 6938046189 - 21 = 6938046187 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6938046187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2475589 + ... + 2478389.

It is an arithmetic number, because the mean of its divisors is an integer number (420617093).

Almost surely, 26938046189 is an apocalyptic number.

It is an amenable number.

6938046189 is a deficient number, since it is larger than the sum of its proper divisors (3156764043).

6938046189 is a wasteful number, since it uses less digits than its factorization.

6938046189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717 (or 4714 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 6938046189 is about 83294.9349540535. The cubic root of 6938046189 is about 1907.2709569494.

The spelling of 6938046189 in words is "six billion, nine hundred thirty-eight million, forty-six thousand, one hundred eighty-nine".

Divisors: 1 3 9 157 471 1413 1753 2801 5259 8403 15777 25209 275221 439757 825663 1319271 2476989 3957813 4910153 14730459 44191377 770894021 2312682063 6938046189