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12844823379213 = 37287379750879
BaseRepresentation
bin1011101011101010101100…
…1000100111110100001101
31200110221201211022102200010
42322322223020213310031
53140422144241113323
643152455211023433
72464002461160300
oct272725310476415
950427654272603
1012844823379213
114102505a2a851
1215354b543ab79
13722352aba647
1432599ad58b37
151741cb3b3c93
hexbaeab227d0d

12844823379213 has 12 divisors (see below), whose sum is σ = 19922583200640. Its totient is φ = 7339899073752.

The previous prime is 12844823379191. The next prime is 12844823379253. The reversal of 12844823379213 is 31297332844821.

It is a happy number.

It is not a de Polignac number, because 12844823379213 - 212 = 12844823375117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12844823379253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43689875293 + ... + 43689875586.

It is an arithmetic number, because the mean of its divisors is an integer number (1660215266720).

Almost surely, 212844823379213 is an apocalyptic number.

It is an amenable number.

12844823379213 is a deficient number, since it is larger than the sum of its proper divisors (7077759821427).

12844823379213 is an equidigital number, since it uses as much as digits as its factorization.

12844823379213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87379750896 (or 87379750889 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 12844823379213 in words is "twelve trillion, eight hundred forty-four billion, eight hundred twenty-three million, three hundred seventy-nine thousand, two hundred thirteen".

Divisors: 1 3 7 21 49 147 87379750879 262139252637 611658256153 1834974768459 4281607793071 12844823379213