Base | Representation |
---|---|
bin | 1000010111010001000… |
… | …00100001001100000101 |
3 | 1000110202012212111102202 |
4 | 10023220200201030011 |
5 | 14202012340231242 |
6 | 340003152044245 |
7 | 26522156323154 |
oct | 4135040411405 |
9 | 1013665774382 |
10 | 287368680197 |
11 | 100966145825 |
12 | 4783b233685 |
13 | 21138c53891 |
14 | dca174759b |
15 | 771d7d5932 |
hex | 42e8821305 |
287368680197 has 2 divisors, whose sum is σ = 287368680198. Its totient is φ = 287368680196.
The previous prime is 287368680167. The next prime is 287368680211. The reversal of 287368680197 is 791086863782.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 286595339716 + 773340481 = 535346^2 + 27809^2 .
It is a cyclic number.
It is not a de Polignac number, because 287368680197 - 222 = 287364485893 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (287368680107) 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 as a sum of consecutive naturals, namely, 143684340098 + 143684340099.
It is an arithmetic number, because the mean of its divisors is an integer number (143684340099).
Almost surely, 2287368680197 is an apocalyptic number.
It is an amenable number.
287368680197 is a deficient number, since it is larger than the sum of its proper divisors (1).
287368680197 is an equidigital number, since it uses as much as digits as its factorization.
287368680197 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 48771072, while the sum is 65.
The spelling of 287368680197 in words is "two hundred eighty-seven billion, three hundred sixty-eight million, six hundred eighty thousand, one hundred ninety-seven".
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