Base | Representation |
---|---|
bin | 110000001010100… |
… | …011111100001011 |
3 | 2002022112110112102 |
4 | 300022203330023 |
5 | 3123331400034 |
6 | 212103504015 |
7 | 26011344563 |
oct | 6012437413 |
9 | 2068473472 |
10 | 808075019 |
11 | 3851567a4 |
12 | 1a675800b |
13 | cb54c4cb |
14 | 7946bda3 |
15 | 4ae1e97e |
hex | 302a3f0b |
808075019 has 2 divisors, whose sum is σ = 808075020. Its totient is φ = 808075018.
The previous prime is 808075003. The next prime is 808075057. The reversal of 808075019 is 910570808.
It is an a-pointer prime, because the next prime (808075057) can be obtained adding 808075019 to its sum of digits (38).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 808075019 - 24 = 808075003 is a prime.
It is a super-2 number, since 2×8080750192 = 1305970472663700722, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (808072019) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404037509 + 404037510.
It is an arithmetic number, because the mean of its divisors is an integer number (404037510).
Almost surely, 2808075019 is an apocalyptic number.
808075019 is a deficient number, since it is larger than the sum of its proper divisors (1).
808075019 is an equidigital number, since it uses as much as digits as its factorization.
808075019 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 20160, while the sum is 38.
The square root of 808075019 is about 28426.6603560812. The cubic root of 808075019 is about 931.4307260974.
The spelling of 808075019 in words is "eight hundred eight million, seventy-five thousand, nineteen".
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