Base | Representation |
---|---|
bin | 1000010001010101… |
… | …1001010100000110 |
3 | 12201201200220111220 |
4 | 2010111121110012 |
5 | 14021332414342 |
6 | 1004150341210 |
7 | 106006253601 |
oct | 20425312406 |
9 | 5651626456 |
10 | 2220201222 |
11 | a3a278048 |
12 | 51b65a806 |
13 | 294c85545 |
14 | 170c19338 |
15 | cedac5ec |
hex | 84559506 |
2220201222 has 16 divisors (see below), whose sum is σ = 4456096320. Its totient is φ = 737451432.
The previous prime is 2220201187. The next prime is 2220201223. The reversal of 2220201222 is 2221020222.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2220201223) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652072 + ... + 655467.
It is an arithmetic number, because the mean of its divisors is an integer number (278506020).
Almost surely, 22220201222 is an apocalyptic number.
2220201222 is an abundant number, since it is smaller than the sum of its proper divisors (2235895098).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2220201222 is a wasteful number, since it uses less digits than its factorization.
2220201222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1307827.
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 2220201222 is about 47119.0112587266. The cubic root of 2220201222 is about 1304.5601629850.
Adding to 2220201222 its reverse (2221020222), we get a palindrome (4441221444).
The spelling of 2220201222 in words is "two billion, two hundred twenty million, two hundred one thousand, two hundred twenty-two".
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