Base | Representation |
---|---|
bin | 101111111110100… |
… | …000011001111101 |
3 | 2002002120220112202 |
4 | 233332200121331 |
5 | 3122024233223 |
6 | 211512041245 |
7 | 25642443263 |
oct | 5776403175 |
9 | 2062526482 |
10 | 804914813 |
11 | 38339845a |
12 | 1a5693225 |
13 | ca9b3c71 |
14 | 78c88433 |
15 | 4a9e8428 |
hex | 2ffa067d |
804914813 has 2 divisors, whose sum is σ = 804914814. Its totient is φ = 804914812.
The previous prime is 804914801. The next prime is 804914833. The reversal of 804914813 is 318419408.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 691321849 + 113592964 = 26293^2 + 10658^2 .
It is a cyclic number.
It is not a de Polignac number, because 804914813 - 210 = 804913789 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (804914833) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402457406 + 402457407.
It is an arithmetic number, because the mean of its divisors is an integer number (402457407).
Almost surely, 2804914813 is an apocalyptic number.
It is an amenable number.
804914813 is a deficient number, since it is larger than the sum of its proper divisors (1).
804914813 is an equidigital number, since it uses as much as digits as its factorization.
804914813 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 27648, while the sum is 38.
The square root of 804914813 is about 28371.0206548866. The cubic root of 804914813 is about 930.2149320168.
The spelling of 804914813 in words is "eight hundred four million, nine hundred fourteen thousand, eight hundred thirteen".
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