Base | Representation |
---|---|
bin | 11000101010011… |
… | …10110001110001 |
3 | 112102022012200001 |
4 | 30111032301301 |
5 | 410431022040 |
6 | 32310230001 |
7 | 5061361045 |
oct | 1425166161 |
9 | 472265601 |
10 | 206892145 |
11 | a6870149 |
12 | 59355301 |
13 | 33b2b3b5 |
14 | 1d698025 |
15 | 1326b59a |
hex | c54ec71 |
206892145 has 8 divisors (see below), whose sum is σ = 248353704. Its totient is φ = 165458304.
The previous prime is 206892139. The next prime is 206892149. The reversal of 206892145 is 541298602.
206892145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 33732864 + 173159281 = 5808^2 + 13159^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 206892145 - 215 = 206859377 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (206892149) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17037 + ... + 26533.
It is an arithmetic number, because the mean of its divisors is an integer number (31044213).
Almost surely, 2206892145 is an apocalyptic number.
It is an amenable number.
206892145 is a deficient number, since it is larger than the sum of its proper divisors (41461559).
206892145 is an equidigital number, since it uses as much as digits as its factorization.
206892145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13859.
The product of its (nonzero) digits is 34560, while the sum is 37.
The square root of 206892145 is about 14383.7458612143. The cubic root of 206892145 is about 591.4454123017.
The spelling of 206892145 in words is "two hundred six million, eight hundred ninety-two thousand, one hundred forty-five".
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