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389383983 = 3314421629
BaseRepresentation
bin10111001101011…
…000011100101111
31000010200202102000
4113031120130233
51244140241413
6102345503343
712435465162
oct2715303457
91003622360
10389383983
1118a884a4a
12aa4a1b53
1362895531
14399ddad9
15242b8073
hex1735872f

389383983 has 8 divisors (see below), whose sum is σ = 576865200. Its totient is φ = 259589304.

The previous prime is 389383979. The next prime is 389383991.

389383983 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 389383983 - 22 = 389383979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389383903) 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 7 ways as a sum of consecutive naturals, for example, 7210788 + ... + 7210841.

It is an arithmetic number, because the mean of its divisors is an integer number (72108150).

Almost surely, 2389383983 is an apocalyptic number.

389383983 is a deficient number, since it is larger than the sum of its proper divisors (187481217).

389383983 is a wasteful number, since it uses less digits than its factorization.

389383983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421638 (or 14421632 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 389383983 is about 19732.8148777614. The cubic root of 389383983 is about 730.2294787399.

The spelling of 389383983 in words is "three hundred eighty-nine million, three hundred eighty-three thousand, nine hundred eighty-three".

Divisors: 1 3 9 27 14421629 43264887 129794661 389383983