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389380788429 = 3877147997259
BaseRepresentation
bin1011010101010001110…
…01110101000011001101
31101020001121122112021120
411222220321311003031
522334422440212204
6454513513351153
740063135043343
oct5525071650315
91336047575246
10389380788429
11140154338596
126356aa084b9
132a9455899b9
1414bbbad5993
15a1de4c56d9
hex5aa8e750cd

389380788429 has 8 divisors (see below), whose sum is σ = 519766377120. Its totient is φ = 259291196016.

The previous prime is 389380788427. The next prime is 389380788449. The reversal of 389380788429 is 924887083983.

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

It is not a de Polignac number, because 389380788429 - 21 = 389380788427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389380788427) 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, 73995999 + ... + 74001260.

It is an arithmetic number, because the mean of its divisors is an integer number (64970797140).

Almost surely, 2389380788429 is an apocalyptic number.

It is an amenable number.

389380788429 is a deficient number, since it is larger than the sum of its proper divisors (130385588691).

389380788429 is a wasteful number, since it uses less digits than its factorization.

389380788429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147998139.

The product of its (nonzero) digits is 167215104, while the sum is 69.

The spelling of 389380788429 in words is "three hundred eighty-nine billion, three hundred eighty million, seven hundred eighty-eight thousand, four hundred twenty-nine".

Divisors: 1 3 877 2631 147997259 443991777 129793596143 389380788429