Base | Representation |
---|---|
bin | 110010101010… |
… | …010000101111 |
3 | 220222201011002 |
4 | 302222100233 |
5 | 11344432203 |
6 | 1152350515 |
7 | 220611041 |
oct | 62522057 |
9 | 26881132 |
10 | 13280303 |
11 | 7550763 |
12 | 454543b |
13 | 299c98a |
14 | 1a99a91 |
15 | 1274d88 |
hex | caa42f |
13280303 has 2 divisors, whose sum is σ = 13280304. Its totient is φ = 13280302.
The previous prime is 13280291. The next prime is 13280317. The reversal of 13280303 is 30308231.
13280303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is an emirp because it is prime and its reverse (30308231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13280303 - 24 = 13280287 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13280353) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6640151 + 6640152.
It is an arithmetic number, because the mean of its divisors is an integer number (6640152).
Almost surely, 213280303 is an apocalyptic number.
13280303 is a deficient number, since it is larger than the sum of its proper divisors (1).
13280303 is an equidigital number, since it uses as much as digits as its factorization.
13280303 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 13280303 is about 3644.2150046341. The cubic root of 13280303 is about 236.8114305320.
Adding to 13280303 its reverse (30308231), we get a palindrome (43588534).
The spelling of 13280303 in words is "thirteen million, two hundred eighty thousand, three hundred three".
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