Base | Representation |
---|---|
bin | 10010101010101101… |
… | …11011110101101101 |
3 | 221212110011212110202 |
4 | 21111112323311231 |
5 | 131011113311341 |
6 | 4334250243245 |
7 | 503232452456 |
oct | 112526736555 |
9 | 27773155422 |
10 | 10022010221 |
11 | 4283188683 |
12 | 1b38426525 |
13 | c39425882 |
14 | 6b105212d |
15 | 3d9ca979b |
hex | 2555bbd6d |
10022010221 has 8 divisors (see below), whose sum is σ = 10720939320. Its totient is φ = 9335236608.
The previous prime is 10022010191. The next prime is 10022010223. The reversal of 10022010221 is 12201022001.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 3967614121 + 6054396100 = 62989^2 + 77810^2 .
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 10022010221 - 26 = 10022010157 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10022010223) 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, 3037166 + ... + 3040463.
It is an arithmetic number, because the mean of its divisors is an integer number (1340117415).
Almost surely, 210022010221 is an apocalyptic number.
It is an amenable number.
10022010221 is a deficient number, since it is larger than the sum of its proper divisors (698929099).
10022010221 is an equidigital number, since it uses as much as digits as its factorization.
10022010221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6077743.
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 10022010221 its reverse (12201022001), we get a palindrome (22223032222).
The spelling of 10022010221 in words is "ten billion, twenty-two million, ten thousand, two hundred twenty-one".
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