Base | Representation |
---|---|
bin | 101111111110111… |
… | …000001011101111 |
3 | 2002002202212010221 |
4 | 233332320023233 |
5 | 3122040342312 |
6 | 211514112211 |
7 | 25643330236 |
oct | 5776701357 |
9 | 2062685127 |
10 | 805012207 |
11 | 38345464a |
12 | 1a571b667 |
13 | caa193ac |
14 | 78cb1b1d |
15 | 4aa17207 |
hex | 2ffb82ef |
805012207 has 2 divisors, whose sum is σ = 805012208. Its totient is φ = 805012206.
The previous prime is 805012171. The next prime is 805012211. The reversal of 805012207 is 702210508.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 805012207 - 27 = 805012079 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (805012217) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402506103 + 402506104.
It is an arithmetic number, because the mean of its divisors is an integer number (402506104).
Almost surely, 2805012207 is an apocalyptic number.
805012207 is a deficient number, since it is larger than the sum of its proper divisors (1).
805012207 is an equidigital number, since it uses as much as digits as its factorization.
805012207 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1120, while the sum is 25.
The square root of 805012207 is about 28372.7370375154. The cubic root of 805012207 is about 930.2524489058.
The spelling of 805012207 in words is "eight hundred five million, twelve thousand, two hundred seven".
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