Base | Representation |
---|---|
bin | 1000000100011010001101 |
3 | 10222110112020 |
4 | 20010122031 |
5 | 1020141323 |
6 | 113200353 |
7 | 23656542 |
oct | 10043215 |
9 | 3873466 |
10 | 2115213 |
11 | 1215211 |
12 | 8600b9 |
13 | 590a09 |
14 | 3d0bc9 |
15 | 2bbae3 |
hex | 20468d |
2115213 has 16 divisors (see below), whose sum is σ = 3041280. Its totient is φ = 1303344.
The previous prime is 2115203. The next prime is 2115221. The reversal of 2115213 is 3125112.
It is not a de Polignac number, because 2115213 - 25 = 2115181 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2115192 and 2115201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2115203) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020 + ... + 2882.
It is an arithmetic number, because the mean of its divisors is an integer number (190080).
22115213 is an apocalyptic number.
It is an amenable number.
2115213 is a deficient number, since it is larger than the sum of its proper divisors (926067).
2115213 is a wasteful number, since it uses less digits than its factorization.
2115213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 928.
The product of its digits is 60, while the sum is 15.
The square root of 2115213 is about 1454.3771862897. The cubic root of 2115213 is about 128.3664021526.
The spelling of 2115213 in words is "two million, one hundred fifteen thousand, two hundred thirteen".
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