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830427398889 = 31173344718721
BaseRepresentation
bin11000001010110010101…
…01001000001011101001
32221101110220122202102020
430011121111020023221
5102101203403231024
61433254301055053
7113665523265534
oct14053125101351
92841426582366
10830427398889
112a0200687950
12114b38557489
1360402a5710a
142c29b467a1b
15169046e2979
hexc1595482e9

830427398889 has 16 divisors (see below), whose sum is σ = 1224440900544. Its totient is φ = 496394956800.

The previous prime is 830427398873. The next prime is 830427398989. The reversal of 830427398889 is 988893724038.

It is not a de Polignac number, because 830427398889 - 24 = 830427398873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (830427398849) 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 15 ways as a sum of consecutive naturals, for example, 172356952 + ... + 172361769.

It is an arithmetic number, because the mean of its divisors is an integer number (76527556284).

Almost surely, 2830427398889 is an apocalyptic number.

It is an amenable number.

830427398889 is a deficient number, since it is larger than the sum of its proper divisors (394013501655).

830427398889 is a wasteful number, since it uses less digits than its factorization.

830427398889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344718808.

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

The spelling of 830427398889 in words is "eight hundred thirty billion, four hundred twenty-seven million, three hundred ninety-eight thousand, eight hundred eighty-nine".

Divisors: 1 3 11 33 73 219 803 2409 344718721 1034156163 3791905931 11375717793 25164466633 75493399899 276809132963 830427398889