Base | Representation |
---|---|
bin | 11001010001110… |
… | …11010001001011 |
3 | 112210000111221011 |
4 | 30220323101023 |
5 | 413241230430 |
6 | 33013024351 |
7 | 5153303326 |
oct | 1450732113 |
9 | 483014834 |
10 | 212055115 |
11 | a9777168 |
12 | 5b0250b7 |
13 | 34c183cc |
14 | 2023d7bd |
15 | 1393b22a |
hex | ca3b44b |
212055115 has 4 divisors (see below), whose sum is σ = 254466144. Its totient is φ = 169644088.
The previous prime is 212055113. The next prime is 212055131. The reversal of 212055115 is 511550212.
It is a happy number.
212055115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 212055115 - 21 = 212055113 is a prime.
It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (212055113) 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, 21205507 + ... + 21205516.
It is an arithmetic number, because the mean of its divisors is an integer number (63616536).
Almost surely, 2212055115 is an apocalyptic number.
212055115 is a deficient number, since it is larger than the sum of its proper divisors (42411029).
212055115 is an equidigital number, since it uses as much as digits as its factorization.
212055115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42411028.
The product of its (nonzero) digits is 500, while the sum is 22.
The square root of 212055115 is about 14562.1123124360. The cubic root of 212055115 is about 596.3248636198.
The spelling of 212055115 in words is "two hundred twelve million, fifty-five thousand, one hundred fifteen".
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