Base | Representation |
---|---|
bin | 11000100111011… |
… | …00011001000111 |
3 | 112101112201212122 |
4 | 30103230121013 |
5 | 410330123114 |
6 | 32253440155 |
7 | 5055062132 |
oct | 1423543107 |
9 | 471481778 |
10 | 206489159 |
11 | a66153a8 |
12 | 591a005b |
13 | 33a19b46 |
14 | 1d5d1219 |
15 | 131dbe8e |
hex | c4ec647 |
206489159 has 4 divisors (see below), whose sum is σ = 206551800. Its totient is φ = 206426520.
The previous prime is 206489149. The next prime is 206489183. The reversal of 206489159 is 951984602.
206489159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 206489159 - 212 = 206485063 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (206489149) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26084 + ... + 33065.
It is an arithmetic number, because the mean of its divisors is an integer number (51637950).
Almost surely, 2206489159 is an apocalyptic number.
206489159 is a deficient number, since it is larger than the sum of its proper divisors (62641).
206489159 is an equidigital number, since it uses as much as digits as its factorization.
206489159 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62640.
The product of its (nonzero) digits is 155520, while the sum is 44.
The square root of 206489159 is about 14369.7306516163. The cubic root of 206489159 is about 591.0611555059.
The spelling of 206489159 in words is "two hundred six million, four hundred eighty-nine thousand, one hundred fifty-nine".
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