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12794892943 = 71827841849
BaseRepresentation
bin10111110101010001…
…01001001010001111
31020000200211220110211
423322220221022033
5202200443033233
65513342543251
7632032536610
oct137250511217
936020756424
1012794892943
115476424498
122590b97b27
13128ba49c91
14895417c07
154ed4395cd
hex2faa2928f

12794892943 has 4 divisors (see below), whose sum is σ = 14622734800. Its totient is φ = 10967051088.

The previous prime is 12794892931. The next prime is 12794892953. The reversal of 12794892943 is 34929849721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34929849721 = 132686911517.

It is a de Polignac number, because none of the positive numbers 2k-12794892943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12794892953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913920918 + ... + 913920931.

It is an arithmetic number, because the mean of its divisors is an integer number (3655683700).

Almost surely, 212794892943 is an apocalyptic number.

12794892943 is a deficient number, since it is larger than the sum of its proper divisors (1827841857).

12794892943 is an equidigital number, since it uses as much as digits as its factorization.

12794892943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827841856.

The product of its digits is 7838208, while the sum is 58.

The spelling of 12794892943 in words is "twelve billion, seven hundred ninety-four million, eight hundred ninety-two thousand, nine hundred forty-three".

Divisors: 1 7 1827841849 12794892943