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6804860813 is a prime number
BaseRepresentation
bin1100101011001100…
…11110111110001101
3122120020112202010222
412111212132332031
5102414021021223
63043123441125
7330426235232
oct62546367615
918506482128
106804860813
112982191713
12139ab261a5
13845a6127a
14487a81789
1529c6200c8
hex19599ef8d

6804860813 has 2 divisors, whose sum is σ = 6804860814. Its totient is φ = 6804860812.

The previous prime is 6804860807. The next prime is 6804860837. The reversal of 6804860813 is 3180684086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5957061124 + 847799689 = 77182^2 + 29117^2 .

It is a cyclic number.

It is not a de Polignac number, because 6804860813 - 220 = 6803812237 is a prime.

It is a super-2 number, since 2×68048608132 = 92612261368606041938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6804860863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402430406 + 3402430407.

It is an arithmetic number, because the mean of its divisors is an integer number (3402430407).

Almost surely, 26804860813 is an apocalyptic number.

It is an amenable number.

6804860813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6804860813 is an equidigital number, since it uses as much as digits as its factorization.

6804860813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 6804860813 is about 82491.5802551994. The cubic root of 6804860813 is about 1894.9877878092.

The spelling of 6804860813 in words is "six billion, eight hundred four million, eight hundred sixty thousand, eight hundred thirteen".