Base | Representation |
---|---|
bin | 11000001111010011… |
… | …11000010111111101 |
3 | 1020120220212012201202 |
4 | 30013221320113331 |
5 | 203122402234323 |
6 | 5551144345245 |
7 | 640324255664 |
oct | 140751702775 |
9 | 36526765652 |
10 | 13013321213 |
11 | 5578753922 |
12 | 2632175225 |
13 | 12c5087189 |
14 | 8b6435ddb |
15 | 5126d3d28 |
hex | 307a785fd |
13013321213 has 2 divisors, whose sum is σ = 13013321214. Its totient is φ = 13013321212.
The previous prime is 13013321203. The next prime is 13013321221. The reversal of 13013321213 is 31212331031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12971615449 + 41705764 = 113893^2 + 6458^2 .
It is a cyclic number.
It is not a de Polignac number, because 13013321213 - 26 = 13013321149 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13013321203) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506660606 + 6506660607.
It is an arithmetic number, because the mean of its divisors is an integer number (6506660607).
Almost surely, 213013321213 is an apocalyptic number.
It is an amenable number.
13013321213 is a deficient number, since it is larger than the sum of its proper divisors (1).
13013321213 is an equidigital number, since it uses as much as digits as its factorization.
13013321213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 13013321213 its reverse (31212331031), we get a palindrome (44225652244).
The spelling of 13013321213 in words is "thirteen billion, thirteen million, three hundred twenty-one thousand, two hundred thirteen".
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