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12385851289 = 76532709659
BaseRepresentation
bin10111000100100000…
…10001011110011001
31011222012011102210221
423202100101132121
5200331234220124
65405011440041
7615634666420
oct134220213631
934865142727
1012385851289
115286543439
122497bb6021
1312250910b6
14856d7c2b7
154c758bce4
hex2e2411799

12385851289 has 8 divisors (see below), whose sum is σ = 14176941120. Its totient is φ = 10600182096.

The previous prime is 12385851281. The next prime is 12385851293. The reversal of 12385851289 is 98215858321.

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

It is not a de Polignac number, because 12385851289 - 23 = 12385851281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12385851281) 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, 1350259 + ... + 1359400.

It is an arithmetic number, because the mean of its divisors is an integer number (1772117640).

Almost surely, 212385851289 is an apocalyptic number.

It is an amenable number.

12385851289 is a deficient number, since it is larger than the sum of its proper divisors (1791089831).

12385851289 is an equidigital number, since it uses as much as digits as its factorization.

12385851289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710319.

The product of its digits is 1382400, while the sum is 52.

The spelling of 12385851289 in words is "twelve billion, three hundred eighty-five million, eight hundred fifty-one thousand, two hundred eighty-nine".

Divisors: 1 7 653 4571 2709659 18967613 1769407327 12385851289