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12791706371 = 40133187567
BaseRepresentation
bin10111110100111000…
…11111001100000011
31020000110212000022122
423322130133030003
5202144134100441
65513150354455
7631663465403
oct137234371403
936013760278
1012791706371
115474648364
12258babba2b
13128b1a2732
14894c28803
154ed00a34b
hex2fa71f303

12791706371 has 4 divisors (see below), whose sum is σ = 12794897952. Its totient is φ = 12788514792.

The previous prime is 12791706353. The next prime is 12791706373. The reversal of 12791706371 is 17360719721.

It is a happy number.

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 12791706371 - 226 = 12724597507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12791706373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589771 + ... + 1597796.

It is an arithmetic number, because the mean of its divisors is an integer number (3198724488).

Almost surely, 212791706371 is an apocalyptic number.

12791706371 is a deficient number, since it is larger than the sum of its proper divisors (3191581).

12791706371 is an equidigital number, since it uses as much as digits as its factorization.

12791706371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191580.

The product of its (nonzero) digits is 111132, while the sum is 44.

The spelling of 12791706371 in words is "twelve billion, seven hundred ninety-one million, seven hundred six thousand, three hundred seventy-one".

Divisors: 1 4013 3187567 12791706371