Base | Representation |
---|---|
bin | 11000110010000… |
… | …11000110100001 |
3 | 112111012001102221 |
4 | 30121003012201 |
5 | 411210033042 |
6 | 32343511041 |
7 | 5103026512 |
oct | 1431030641 |
9 | 474161387 |
10 | 207892897 |
11 | a7394013 |
12 | 59758481 |
13 | 340bba64 |
14 | 1d878a09 |
15 | 133b7d67 |
hex | c6431a1 |
207892897 has 2 divisors, whose sum is σ = 207892898. Its totient is φ = 207892896.
The previous prime is 207892879. The next prime is 207892901. The reversal of 207892897 is 798298702.
Together with previous prime (207892879) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 107972881 + 99920016 = 10391^2 + 9996^2 .
It is a cyclic number.
It is not a de Polignac number, because 207892897 - 211 = 207890849 is a prime.
It is not a weakly prime, because it can be changed into another prime (207892807) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103946448 + 103946449.
It is an arithmetic number, because the mean of its divisors is an integer number (103946449).
Almost surely, 2207892897 is an apocalyptic number.
It is an amenable number.
207892897 is a deficient number, since it is larger than the sum of its proper divisors (1).
207892897 is an equidigital number, since it uses as much as digits as its factorization.
207892897 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1016064, while the sum is 52.
The square root of 207892897 is about 14418.4914952987. The cubic root of 207892897 is about 592.3974999982.
The spelling of 207892897 in words is "two hundred seven million, eight hundred ninety-two thousand, eight hundred ninety-seven".
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