Base | Representation |
---|---|
bin | 1000010001100010… |
… | …0011111100111110 |
3 | 12201210021002001221 |
4 | 2010120203330332 |
5 | 14022040444410 |
6 | 1004220223554 |
7 | 106016311465 |
oct | 20430437476 |
9 | 5653232057 |
10 | 2221031230 |
11 | a3a794700 |
12 | 51b99abba |
13 | 2951b6282 |
14 | 170d939dc |
15 | ceec34da |
hex | 84623f3e |
2221031230 has 96 divisors (see below), whose sum is σ = 4517420544. Its totient is φ = 785400000.
The previous prime is 2221031203. The next prime is 2221031231. The reversal of 2221031230 is 321301222.
2221031230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2221031231) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8848605 + ... + 8848855.
It is an arithmetic number, because the mean of its divisors is an integer number (47056464).
Almost surely, 22221031230 is an apocalyptic number.
2221031230 is an abundant number, since it is smaller than the sum of its proper divisors (2296389314).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2221031230 is a wasteful number, since it uses less digits than its factorization.
2221031230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 454 (or 443 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 2221031230 is about 47127.8180059294. The cubic root of 2221031230 is about 1304.7227098834.
Adding to 2221031230 its reverse (321301222), we get a palindrome (2542332452).
The spelling of 2221031230 in words is "two billion, two hundred twenty-one million, thirty-one thousand, two hundred thirty".
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