Base | Representation |
---|---|
bin | 10111101110111011… |
… | …01001111000101110 |
3 | 1012212222201102222111 |
4 | 23313131221320232 |
5 | 202043332240221 |
6 | 5504202234234 |
7 | 630515333050 |
oct | 136735517056 |
9 | 35788642874 |
10 | 12741680686 |
11 | 544938a319 |
12 | 25771b597a |
13 | 1280a08737 |
14 | 88c3258d0 |
15 | 4e8927be1 |
hex | 2f7769e2e |
12741680686 has 8 divisors (see below), whose sum is σ = 21842881200. Its totient is φ = 5460720288.
The previous prime is 12741680669. The next prime is 12741680689. The reversal of 12741680686 is 68608614721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12741680689) 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, 455060011 + ... + 455060038.
It is an arithmetic number, because the mean of its divisors is an integer number (2730360150).
Almost surely, 212741680686 is an apocalyptic number.
12741680686 is a deficient number, since it is larger than the sum of its proper divisors (9101200514).
12741680686 is an equidigital number, since it uses as much as digits as its factorization.
12741680686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 910120058.
The product of its (nonzero) digits is 774144, while the sum is 49.
The spelling of 12741680686 in words is "twelve billion, seven hundred forty-one million, six hundred eighty thousand, six hundred eighty-six".
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