Base | Representation |
---|---|
bin | 10110110001010101… |
… | …10010110000101011 |
3 | 1011112222112221010202 |
4 | 23120222302300223 |
5 | 200014101444321 |
6 | 5341024502415 |
7 | 611643023261 |
oct | 133052626053 |
9 | 34488487122 |
10 | 12225031211 |
11 | 5203790988 |
12 | 245217aa0b |
13 | 11ca9742a3 |
14 | 83d878431 |
15 | 4b83c170b |
hex | 2d8ab2c2b |
12225031211 has 8 divisors (see below), whose sum is σ = 12969893664. Its totient is φ = 11483029120.
The previous prime is 12225031157. The next prime is 12225031241. The reversal of 12225031211 is 11213052221.
12225031211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 12225031211 - 210 = 12225030187 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12225031241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706280 + ... + 723381.
It is an arithmetic number, because the mean of its divisors is an integer number (1621236708).
Almost surely, 212225031211 is an apocalyptic number.
12225031211 is a deficient number, since it is larger than the sum of its proper divisors (744862453).
12225031211 is a wasteful number, since it uses less digits than its factorization.
12225031211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1430181.
The product of its (nonzero) digits is 240, while the sum is 20.
Adding to 12225031211 its reverse (11213052221), we get a palindrome (23438083432).
The spelling of 12225031211 in words is "twelve billion, two hundred twenty-five million, thirty-one thousand, two hundred eleven".
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