Base | Representation |
---|---|
bin | 110000000010001… |
… | …101000001111111 |
3 | 2002011102011001201 |
4 | 300002031001333 |
5 | 3122301242111 |
6 | 211544520331 |
7 | 25653621061 |
oct | 6002150177 |
9 | 2064364051 |
10 | 805884031 |
11 | 38399a667 |
12 | 1a5a800a7 |
13 | cac63174 |
14 | 7905b731 |
15 | 4ab3a6c1 |
hex | 3008d07f |
805884031 has 16 divisors (see below), whose sum is σ = 900741600. Its totient is φ = 716525568.
The previous prime is 805884019. The next prime is 805884041. The reversal of 805884031 is 130488508.
It is not a de Polignac number, because 805884031 - 25 = 805883999 is a prime.
It is a super-2 number, since 2×8058840312 = 1298898142841617922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (805884041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117135 + ... + 123823.
It is an arithmetic number, because the mean of its divisors is an integer number (56296350).
Almost surely, 2805884031 is an apocalyptic number.
805884031 is a deficient number, since it is larger than the sum of its proper divisors (94857569).
805884031 is a wasteful number, since it uses less digits than its factorization.
805884031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7098.
The product of its (nonzero) digits is 30720, while the sum is 37.
The square root of 805884031 is about 28388.0966427832. The cubic root of 805884031 is about 930.5881472569.
The spelling of 805884031 in words is "eight hundred five million, eight hundred eighty-four thousand, thirty-one".
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