Base | Representation |
---|---|
bin | 11000010101000… |
… | …00010001010101 |
3 | 112020000100102102 |
4 | 30022200101111 |
5 | 404221031323 |
6 | 32130051445 |
7 | 5025440021 |
oct | 1412402125 |
9 | 466010372 |
10 | 204080213 |
11 | a521a537 |
12 | 58419b85 |
13 | 3338552c |
14 | 1d165381 |
15 | 12db3328 |
hex | c2a0455 |
204080213 has 2 divisors, whose sum is σ = 204080214. Its totient is φ = 204080212.
The previous prime is 204080141. The next prime is 204080231. The reversal of 204080213 is 312080402.
Together with next prime (204080231) 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., 135885649 + 68194564 = 11657^2 + 8258^2 .
It is a cyclic number.
It is not a de Polignac number, because 204080213 - 216 = 204014677 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (204080113) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102040106 + 102040107.
It is an arithmetic number, because the mean of its divisors is an integer number (102040107).
Almost surely, 2204080213 is an apocalyptic number.
It is an amenable number.
204080213 is a deficient number, since it is larger than the sum of its proper divisors (1).
204080213 is an equidigital number, since it uses as much as digits as its factorization.
204080213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 384, while the sum is 20.
The square root of 204080213 is about 14285.6645977707. The cubic root of 204080213 is about 588.7536776411.
The spelling of 204080213 in words is "two hundred four million, eighty thousand, two hundred thirteen".
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