Base | Representation |
---|---|
bin | 101111111111101… |
… | …010111011100011 |
3 | 2002010011102021110 |
4 | 233333222323203 |
5 | 3122114020232 |
6 | 211522354403 |
7 | 25645154241 |
oct | 5777527343 |
9 | 2063142243 |
10 | 805220067 |
11 | 383586833 |
12 | 1a57bba03 |
13 | caa8cba2 |
14 | 78d27791 |
15 | 4aa58acc |
hex | 2ffeaee3 |
805220067 has 8 divisors (see below), whose sum is σ = 1073822400. Its totient is φ = 536715560.
The previous prime is 805220063. The next prime is 805220077. The reversal of 805220067 is 760022508.
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 805220067 - 22 = 805220063 is a prime.
It is not an unprimeable number, because it can be changed into a prime (805220063) 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, 2409 + ... + 40202.
It is an arithmetic number, because the mean of its divisors is an integer number (134227800).
Almost surely, 2805220067 is an apocalyptic number.
805220067 is a deficient number, since it is larger than the sum of its proper divisors (268602333).
805220067 is a wasteful number, since it uses less digits than its factorization.
805220067 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48913.
The product of its (nonzero) digits is 6720, while the sum is 30.
The square root of 805220067 is about 28376.3998245021. The cubic root of 805220067 is about 930.3325079957.
The spelling of 805220067 in words is "eight hundred five million, two hundred twenty thousand, sixty-seven".
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