Base | Representation |
---|---|
bin | 1000010001100001… |
… | …1111100011100111 |
3 | 12201210020011101000 |
4 | 2010120133203213 |
5 | 14022034410343 |
6 | 1004220004343 |
7 | 106016205132 |
oct | 20430374347 |
9 | 5653204330 |
10 | 2221013223 |
11 | a3a782120 |
12 | 51b9906b3 |
13 | 2951ab010 |
14 | 170d8b219 |
15 | ceebced3 |
hex | 8461f8e7 |
2221013223 has 32 divisors (see below), whose sum is σ = 3865639680. Its totient is φ = 1242522720.
The previous prime is 2221013213. The next prime is 2221013237. The reversal of 2221013223 is 3223101222.
2221013223 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 2221013223 - 28 = 2221012967 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2221013196 and 2221013205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2221013203) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283761 + ... + 291482.
It is an arithmetic number, because the mean of its divisors is an integer number (120801240).
Almost surely, 22221013223 is an apocalyptic number.
2221013223 is a deficient number, since it is larger than the sum of its proper divisors (1644626457).
2221013223 is a wasteful number, since it uses less digits than its factorization.
2221013223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 575276 (or 575270 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2221013223 is about 47127.6269612634. The cubic root of 2221013223 is about 1304.7191838629.
Adding to 2221013223 its reverse (3223101222), we get a palindrome (5444114445).
The spelling of 2221013223 in words is "two billion, two hundred twenty-one million, thirteen thousand, two hundred twenty-three".
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