Base | Representation |
---|---|
bin | 11000001000111111… |
… | …00110100001001101 |
3 | 1020110020002012102112 |
4 | 30010133212201031 |
5 | 203020313414424 |
6 | 5542012033405 |
7 | 636111455405 |
oct | 140437464115 |
9 | 36406065375 |
10 | 12960294989 |
11 | 55508264a4 |
12 | 2618462865 |
13 | 12b70ac505 |
14 | 8ad391805 |
15 | 50cc0c60e |
hex | 3047e684d |
12960294989 has 4 divisors (see below), whose sum is σ = 13021718400. Its totient is φ = 12898871580.
The previous prime is 12960294959. The next prime is 12960295063. The reversal of 12960294989 is 98949206921.
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.
It is a cyclic number.
It is not a de Polignac number, because 12960294989 - 28 = 12960294733 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 (12960294959) 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, 30711389 + ... + 30711810.
It is an arithmetic number, because the mean of its divisors is an integer number (3255429600).
Almost surely, 212960294989 is an apocalyptic number.
It is an amenable number.
12960294989 is a deficient number, since it is larger than the sum of its proper divisors (61423411).
12960294989 is an equidigital number, since it uses as much as digits as its factorization.
12960294989 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61423410.
The product of its (nonzero) digits is 5038848, while the sum is 59.
The spelling of 12960294989 in words is "twelve billion, nine hundred sixty million, two hundred ninety-four thousand, nine hundred eighty-nine".
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