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12443828579 = 713136745369
BaseRepresentation
bin10111001011011010…
…11100000101100011
31012010020020222200222
423211231130011203
5200441110003304
65414442233255
7620240540420
oct134555340543
935106228628
1012443828579
115306242656
1224b34b582b
1312340b04a0
14860950d47
154cc6e04be
hex2e5b5c163

12443828579 has 8 divisors (see below), whose sum is σ = 15315481440. Its totient is φ = 9845666496.

The previous prime is 12443828569. The next prime is 12443828581. The reversal of 12443828579 is 97582834421.

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 12443828579 - 28 = 12443828323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12443828579.

It is not an unprimeable number, because it can be changed into a prime (12443828569) 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, 68372594 + ... + 68372775.

It is an arithmetic number, because the mean of its divisors is an integer number (1914435180).

Almost surely, 212443828579 is an apocalyptic number.

12443828579 is a deficient number, since it is larger than the sum of its proper divisors (2871652861).

12443828579 is a wasteful number, since it uses less digits than its factorization.

12443828579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136745389.

The product of its digits is 3870720, while the sum is 53.

The spelling of 12443828579 in words is "twelve billion, four hundred forty-three million, eight hundred twenty-eight thousand, five hundred seventy-nine".

Divisors: 1 7 13 91 136745369 957217583 1777689797 12443828579