Base | Representation |
---|---|
bin | 11001110011100011… |
… | …11010110100011101 |
3 | 1022202112021210220112 |
4 | 30321301322310131 |
5 | 211333144223211 |
6 | 10210425255405 |
7 | 1000215341435 |
oct | 147161726435 |
9 | 38675253815 |
10 | 13854289181 |
11 | 596a426577 |
12 | 2827934565 |
13 | 13ca382365 |
14 | 955dc72c5 |
15 | 56144e88b |
hex | 339c7ad1d |
13854289181 has 2 divisors, whose sum is σ = 13854289182. Its totient is φ = 13854289180.
The previous prime is 13854289151. The next prime is 13854289237. The reversal of 13854289181 is 18198245831.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7078529956 + 6775759225 = 84134^2 + 82315^2 .
It is a cyclic number.
It is not a de Polignac number, because 13854289181 - 26 = 13854289117 is a prime.
It is a super-3 number, since 3×138542891813 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13854289151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927144590 + 6927144591.
It is an arithmetic number, because the mean of its divisors is an integer number (6927144591).
Almost surely, 213854289181 is an apocalyptic number.
It is an amenable number.
13854289181 is a deficient number, since it is larger than the sum of its proper divisors (1).
13854289181 is an equidigital number, since it uses as much as digits as its factorization.
13854289181 is an evil number, because the sum of its binary digits is even.
The product of its digits is 552960, while the sum is 50.
The spelling of 13854289181 in words is "thirteen billion, eight hundred fifty-four million, two hundred eighty-nine thousand, one hundred eighty-one".
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