Base | Representation |
---|---|
bin | 110000011000… |
… | …001111100111 |
3 | 212212022201200 |
4 | 300120033213 |
5 | 11221312330 |
6 | 1131453543 |
7 | 212540250 |
oct | 60301747 |
9 | 25768650 |
10 | 12682215 |
11 | 7182377 |
12 | 42b72b3 |
13 | 2820690 |
14 | 1981b27 |
15 | 11a7a60 |
hex | c183e7 |
12682215 has 96 divisors (see below), whose sum is σ = 28654080. Its totient is φ = 5038848.
The previous prime is 12682213. The next prime is 12682237. The reversal of 12682215 is 51228621.
It is a happy number.
12682215 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 12682215 - 21 = 12682213 is a prime.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12682213) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77724 + ... + 77886.
It is an arithmetic number, because the mean of its divisors is an integer number (298480).
Almost surely, 212682215 is an apocalyptic number.
12682215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12682215 is an abundant number, since it is smaller than the sum of its proper divisors (15971865).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12682215 is a wasteful number, since it uses less digits than its factorization.
12682215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 213 (or 210 counting only the distinct ones).
The product of its digits is 1920, while the sum is 27.
The square root of 12682215 is about 3561.2097663575. The cubic root of 12682215 is about 233.2016955903.
The spelling of 12682215 in words is "twelve million, six hundred eighty-two thousand, two hundred fifteen".
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