Base | Representation |
---|---|
bin | 110010011000… |
… | …100111101111 |
3 | 220212001000221 |
4 | 302120213233 |
5 | 11340124142 |
6 | 1151032211 |
7 | 220160266 |
oct | 62304757 |
9 | 26761027 |
10 | 13208047 |
11 | 7501446 |
12 | 450b667 |
13 | 2975b18 |
14 | 1a7b5dd |
15 | 125d767 |
hex | c989ef |
13208047 has 2 divisors, whose sum is σ = 13208048. Its totient is φ = 13208046.
The previous prime is 13208029. The next prime is 13208051. The reversal of 13208047 is 74080231.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13208047 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13208057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6604023 + 6604024.
It is an arithmetic number, because the mean of its divisors is an integer number (6604024).
Almost surely, 213208047 is an apocalyptic number.
13208047 is a deficient number, since it is larger than the sum of its proper divisors (1).
13208047 is an equidigital number, since it uses as much as digits as its factorization.
13208047 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 13208047 is about 3634.2876881172. The cubic root of 13208047 is about 236.3811649050.
Adding to 13208047 its reverse (74080231), we get a palindrome (87288278).
The spelling of 13208047 in words is "thirteen million, two hundred eight thousand, forty-seven".
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