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12738333713 = 71819761959
BaseRepresentation
bin10111101110100001…
…11000110000010001
31012212202102101210112
423313100320300101
5202042003134323
65504002411105
7630445023110
oct136720706021
935782371715
1012738333713
115447503726
122576060a95
131280106191
1488bad3c77
154e84b6178
hex2f7438c11

12738333713 has 4 divisors (see below), whose sum is σ = 14558095680. Its totient is φ = 10918571748.

The previous prime is 12738333701. The next prime is 12738333737. The reversal of 12738333713 is 31733383721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31733383721 = 132441029517.

It is not a de Polignac number, because 12738333713 - 222 = 12734139409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12738336713) 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, 909880973 + ... + 909880986.

It is an arithmetic number, because the mean of its divisors is an integer number (3639523920).

Almost surely, 212738333713 is an apocalyptic number.

It is an amenable number.

12738333713 is a deficient number, since it is larger than the sum of its proper divisors (1819761967).

12738333713 is an equidigital number, since it uses as much as digits as its factorization.

12738333713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819761966.

The product of its digits is 190512, while the sum is 41.

The spelling of 12738333713 in words is "twelve billion, seven hundred thirty-eight million, three hundred thirty-three thousand, seven hundred thirteen".

Divisors: 1 7 1819761959 12738333713