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389129812039 = 3711867886241
BaseRepresentation
bin1011010100110011111…
…00011011100001000111
31101012102010101121101201
411222121330123201013
522333414212441124
6454432550203331
740053666553633
oct5523174334107
91335363347351
10389129812039
111400356a8291
12634ba953547
132a905594a67
1414b96643dc3
15a1c744c144
hex5a99f1b847

389129812039 has 8 divisors (see below), whose sum is σ = 399680962128. Its totient is φ = 378580458240.

The previous prime is 389129812013. The next prime is 389129812079. The reversal of 389129812039 is 930218921983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389129812039 - 27 = 389129811911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389129812079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4042 + ... + 882199.

It is an arithmetic number, because the mean of its divisors is an integer number (49960120266).

Almost surely, 2389129812039 is an apocalyptic number.

389129812039 is a deficient number, since it is larger than the sum of its proper divisors (10551150089).

389129812039 is a wasteful number, since it uses less digits than its factorization.

389129812039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898145.

The product of its (nonzero) digits is 1679616, while the sum is 55.

The spelling of 389129812039 in words is "three hundred eighty-nine billion, one hundred twenty-nine million, eight hundred twelve thousand, thirty-nine".

Divisors: 1 37 11867 439079 886241 32790917 10517021947 389129812039