Base | Representation |
---|---|
bin | 11000100110111000… |
… | …00011011101101101 |
3 | 1021002200212111220001 |
4 | 30103130003131231 |
5 | 204024010220323 |
6 | 10022530024301 |
7 | 645244562443 |
oct | 142334033555 |
9 | 37080774801 |
10 | 13211023213 |
11 | 566a307303 |
12 | 2688418091 |
13 | 13270184cb |
14 | 8d47bab93 |
15 | 524c373ad |
hex | 31370376d |
13211023213 has 2 divisors, whose sum is σ = 13211023214. Its totient is φ = 13211023212.
The previous prime is 13211023201. The next prime is 13211023229. The reversal of 13211023213 is 31232011231.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 13163661289 + 47361924 = 114733^2 + 6882^2 .
It is a cyclic number.
It is not a de Polignac number, because 13211023213 - 213 = 13211015021 is a prime.
It is a super-2 number, since 2×132110232132 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13211053213) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605511606 + 6605511607.
It is an arithmetic number, because the mean of its divisors is an integer number (6605511607).
Almost surely, 213211023213 is an apocalyptic number.
It is an amenable number.
13211023213 is a deficient number, since it is larger than the sum of its proper divisors (1).
13211023213 is an equidigital number, since it uses as much as digits as its factorization.
13211023213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 13211023213 its reverse (31232011231), we get a palindrome (44443034444).
The spelling of 13211023213 in words is "thirteen billion, two hundred eleven million, twenty-three thousand, two hundred thirteen".
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