Base | Representation |
---|---|
bin | 110010000011… |
… | …111010000111 |
3 | 220200201122201 |
4 | 302003322013 |
5 | 11324420312 |
6 | 1145135331 |
7 | 216355036 |
oct | 62037207 |
9 | 26621581 |
10 | 13123207 |
11 | 7453729 |
12 | 448a547 |
13 | 2946316 |
14 | 1a5871d |
15 | 1243557 |
hex | c83e87 |
13123207 has 2 divisors, whose sum is σ = 13123208. Its totient is φ = 13123206.
The previous prime is 13123183. The next prime is 13123211. The reversal of 13123207 is 70232131.
13123207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13123207 - 27 = 13123079 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13123217) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561603 + 6561604.
It is an arithmetic number, because the mean of its divisors is an integer number (6561604).
Almost surely, 213123207 is an apocalyptic number.
13123207 is a deficient number, since it is larger than the sum of its proper divisors (1).
13123207 is an equidigital number, since it uses as much as digits as its factorization.
13123207 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 252, while the sum is 19.
The square root of 13123207 is about 3622.5967205859. The cubic root of 13123207 is about 235.8739571612.
Adding to 13123207 its reverse (70232131), we get a palindrome (83355338).
The spelling of 13123207 in words is "thirteen million, one hundred twenty-three thousand, two hundred seven".
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