Base | Representation |
---|---|
bin | 110010011001… |
… | …001001101111 |
3 | 220212011000112 |
4 | 302121021233 |
5 | 11340211343 |
6 | 1151050235 |
7 | 220166525 |
oct | 62311157 |
9 | 26764015 |
10 | 13210223 |
11 | 7503044 |
12 | 451097b |
13 | 2976b00 |
14 | 1a7c315 |
15 | 125e218 |
hex | c9926f |
13210223 has 6 divisors (see below), whose sum is σ = 14304744. Its totient is φ = 12193896.
The previous prime is 13210213. The next prime is 13210237. The reversal of 13210223 is 32201231.
It is a happy number.
13210223 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13210223 - 28 = 13209967 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13210198 and 13210207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13210213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38915 + ... + 39252.
It is an arithmetic number, because the mean of its divisors is an integer number (2384124).
Almost surely, 213210223 is an apocalyptic number.
13210223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
13210223 is a deficient number, since it is larger than the sum of its proper divisors (1094521).
13210223 is an equidigital number, since it uses as much as digits as its factorization.
13210223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78193 (or 78180 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 13210223 is about 3634.5870466946. The cubic root of 13210223 is about 236.3941453043.
Adding to 13210223 its reverse (32201231), we get a palindrome (45411454).
The spelling of 13210223 in words is "thirteen million, two hundred ten thousand, two hundred twenty-three".
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