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389324349 = 32239318077
BaseRepresentation
bin10111001101001…
…001111000111101
31000010120201121100
4113031021320331
51244131334344
6102344323313
712435126261
oct2715117075
91003521540
10389324349
1118a844167
12aa473539
136287434b
14399c60a1
15242a5569
hex17349e3d

389324349 has 12 divisors (see below), whose sum is σ = 562623516. Its totient is φ = 259426752.

The previous prime is 389324297. The next prime is 389324399. The reversal of 389324349 is 943423983.

It can be written as a sum of positive squares in 2 ways, for example, as 190937124 + 198387225 = 13818^2 + 14085^2 .

It is not a de Polignac number, because 389324349 - 213 = 389316157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389324399) 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 11 ways as a sum of consecutive naturals, for example, 12499 + ... + 30575.

It is an arithmetic number, because the mean of its divisors is an integer number (46885293).

Almost surely, 2389324349 is an apocalyptic number.

It is an amenable number.

389324349 is a deficient number, since it is larger than the sum of its proper divisors (173299167).

389324349 is a wasteful number, since it uses less digits than its factorization.

389324349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20476 (or 20473 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 389324349 is about 19731.3037835821. The cubic root of 389324349 is about 730.1921987199.

The spelling of 389324349 in words is "three hundred eighty-nine million, three hundred twenty-four thousand, three hundred forty-nine".

Divisors: 1 3 9 2393 7179 18077 21537 54231 162693 43258261 129774783 389324349