Base | Representation |
---|---|
bin | 110000001101110… |
… | …101111100110101 |
3 | 2002101011011111202 |
4 | 300031311330311 |
5 | 3124041411341 |
6 | 212134142245 |
7 | 26021556503 |
oct | 6015657465 |
9 | 2071134452 |
10 | 808935221 |
11 | 385694006 |
12 | 1a6ab1985 |
13 | cb790bc3 |
14 | 79613673 |
15 | 4b03e79b |
hex | 30375f35 |
808935221 has 8 divisors (see below), whose sum is σ = 828383424. Its totient is φ = 789516000.
The previous prime is 808935187. The next prime is 808935223. The reversal of 808935221 is 122539808.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-808935221 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (808935223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55721 + ... + 68721.
It is an arithmetic number, because the mean of its divisors is an integer number (103547928).
Almost surely, 2808935221 is an apocalyptic number.
It is an amenable number.
808935221 is a deficient number, since it is larger than the sum of its proper divisors (19448203).
808935221 is a wasteful number, since it uses less digits than its factorization.
808935221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14491.
The product of its (nonzero) digits is 34560, while the sum is 38.
The square root of 808935221 is about 28441.7865296820. The cubic root of 808935221 is about 931.7611139210.
The spelling of 808935221 in words is "eight hundred eight million, nine hundred thirty-five thousand, two hundred twenty-one".
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