Base | Representation |
---|---|
bin | 11001101000011… |
… | …00101111000001 |
3 | 112222120122121021 |
4 | 30310030233001 |
5 | 420020311431 |
6 | 33200225441 |
7 | 5220362005 |
oct | 1464145701 |
9 | 488518537 |
10 | 215010241 |
11 | 100405416 |
12 | 6000b281 |
13 | 357114c4 |
14 | 207ac705 |
15 | 13d21b11 |
hex | cd0cbc1 |
215010241 has 8 divisors (see below), whose sum is σ = 219861864. Its totient is φ = 210188160.
The previous prime is 215010227. The next prime is 215010247. The reversal of 215010241 is 142010512.
It can be written as a sum of positive squares in 4 ways, for example, as 67897600 + 147112641 = 8240^2 + 12129^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 215010241 - 211 = 215008193 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (215010247) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7675 + ... + 22111.
It is an arithmetic number, because the mean of its divisors is an integer number (27482733).
Almost surely, 2215010241 is an apocalyptic number.
It is an amenable number.
215010241 is a deficient number, since it is larger than the sum of its proper divisors (4851623).
215010241 is a wasteful number, since it uses less digits than its factorization.
215010241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14771.
The product of its (nonzero) digits is 80, while the sum is 16.
The square root of 215010241 is about 14663.2275096583. The cubic root of 215010241 is about 599.0821531260.
Adding to 215010241 its reverse (142010512), we get a palindrome (357020753).
The spelling of 215010241 in words is "two hundred fifteen million, ten thousand, two hundred forty-one".
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