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12132586979 = 17713681587
BaseRepresentation
bin10110100110010100…
…01001010111100011
31011022112121021111022
423103022021113203
5144321420240404
65323523240055
7606441200462
oct132312112743
934275537438
1012132586979
115166590197
12242721902b
1311b4777966
148314929d9
154b02108be
hex2d32895e3

12132586979 has 4 divisors (see below), whose sum is σ = 12846268584. Its totient is φ = 11418905376.

The previous prime is 12132586969. The next prime is 12132587069. The reversal of 12132586979 is 97968523121.

12132586979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12132586979 - 28 = 12132586723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12132586979.

It is not an unprimeable number, because it can be changed into a prime (12132586919) 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 3 ways as a sum of consecutive naturals, for example, 356840777 + ... + 356840810.

It is an arithmetic number, because the mean of its divisors is an integer number (3211567146).

Almost surely, 212132586979 is an apocalyptic number.

12132586979 is a deficient number, since it is larger than the sum of its proper divisors (713681605).

12132586979 is an equidigital number, since it uses as much as digits as its factorization.

12132586979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713681604.

The product of its digits is 1632960, while the sum is 53.

The spelling of 12132586979 in words is "twelve billion, one hundred thirty-two million, five hundred eighty-six thousand, nine hundred seventy-nine".

Divisors: 1 17 713681587 12132586979