Base | Representation |
---|---|
bin | 101110010001… |
… | …101000010111 |
3 | 211211022101100 |
4 | 232101220113 |
5 | 11101141324 |
6 | 1112001143 |
7 | 205052610 |
oct | 56215027 |
9 | 24738340 |
10 | 12130839 |
11 | 6936096 |
12 | 40901b3 |
13 | 2689716 |
14 | 187ac07 |
15 | 10e94c9 |
hex | b91a17 |
12130839 has 12 divisors (see below), whose sum is σ = 20025616. Its totient is φ = 6931872.
The previous prime is 12130771. The next prime is 12130849. The reversal of 12130839 is 93803121.
12130839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12130839 - 28 = 12130583 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 (12130849) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96214 + ... + 96339.
Almost surely, 212130839 is an apocalyptic number.
12130839 is a deficient number, since it is larger than the sum of its proper divisors (7894777).
12130839 is a wasteful number, since it uses less digits than its factorization.
12130839 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 192566 (or 192563 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The square root of 12130839 is about 3482.9353999177. The cubic root of 12130839 is about 229.7719162985.
The spelling of 12130839 in words is "twelve million, one hundred thirty thousand, eight hundred thirty-nine".
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