Base | Representation |
---|---|
bin | 110110001100… |
… | …100011101001 |
3 | 222201210121221 |
4 | 312030203221 |
5 | 12114112314 |
6 | 1224302041 |
7 | 231521302 |
oct | 66144351 |
9 | 28653557 |
10 | 14207209 |
11 | 80240a5 |
12 | 4911921 |
13 | 2c35843 |
14 | 1c5b7a9 |
15 | 13a9824 |
hex | d8c8e9 |
14207209 has 2 divisors, whose sum is σ = 14207210. Its totient is φ = 14207208.
The previous prime is 14207183. The next prime is 14207213. The reversal of 14207209 is 90270241.
14207209 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 can be written as a sum of positive squares in only one way, i.e., 7856809 + 6350400 = 2803^2 + 2520^2 .
It is a cyclic number.
It is not a de Polignac number, because 14207209 - 25 = 14207177 is a prime.
It is not a weakly prime, because it can be changed into another prime (14207239) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7103604 + 7103605.
It is an arithmetic number, because the mean of its divisors is an integer number (7103605).
Almost surely, 214207209 is an apocalyptic number.
It is an amenable number.
14207209 is a deficient number, since it is larger than the sum of its proper divisors (1).
14207209 is an equidigital number, since it uses as much as digits as its factorization.
14207209 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1008, while the sum is 25.
The square root of 14207209 is about 3769.2451498941. The cubic root of 14207209 is about 242.1974630851.
The spelling of 14207209 in words is "fourteen million, two hundred seven thousand, two hundred nine".
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