Base | Representation |
---|---|
bin | 10111100111110000… |
… | …11110111111011011 |
3 | 1012201210200021202011 |
4 | 23303320132333123 |
5 | 201432442330313 |
6 | 5454214450351 |
7 | 626155602400 |
oct | 136370367733 |
9 | 35653607664 |
10 | 12681605083 |
11 | 5418487664 |
12 | 255b0639b7 |
13 | 1271433244 |
14 | 8843682a7 |
15 | 4e350c93d |
hex | 2f3e1efdb |
12681605083 has 24 divisors (see below), whose sum is σ = 15270984000. Its totient is φ = 10488094848.
The previous prime is 12681605077. The next prime is 12681605093. The reversal of 12681605083 is 38050618621.
It is not a de Polignac number, because 12681605083 - 225 = 12648050651 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12681605033) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4157743 + ... + 4160791.
It is an arithmetic number, because the mean of its divisors is an integer number (636291000).
Almost surely, 212681605083 is an apocalyptic number.
12681605083 is a deficient number, since it is larger than the sum of its proper divisors (2589378917).
12681605083 is a wasteful number, since it uses less digits than its factorization.
12681605083 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6019 (or 6012 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 40.
The spelling of 12681605083 in words is "twelve billion, six hundred eighty-one million, six hundred five thousand, eighty-three".
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