Base | Representation |
---|---|
bin | 101111111111001… |
… | …010010011000001 |
3 | 2002002220121220212 |
4 | 233333022103001 |
5 | 3122100231101 |
6 | 211515443505 |
7 | 25644056450 |
oct | 5777122301 |
9 | 2062817825 |
10 | 805086401 |
11 | 3834a5369 |
12 | 1a5756595 |
13 | caa440b2 |
14 | 78cd0b97 |
15 | 4aa2e1bb |
hex | 2ffca4c1 |
805086401 has 16 divisors (see below), whose sum is σ = 932253696. Its totient is φ = 681016896.
The previous prime is 805086397. The next prime is 805086407. The reversal of 805086401 is 104680508.
It is not a de Polignac number, because 805086401 - 22 = 805086397 is a prime.
It is a super-2 number, since 2×8050864012 = 1296328226150265602, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (805086407) 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 15 ways as a sum of consecutive naturals, for example, 172835 + ... + 177431.
It is an arithmetic number, because the mean of its divisors is an integer number (58265856).
Almost surely, 2805086401 is an apocalyptic number.
It is an amenable number.
805086401 is a deficient number, since it is larger than the sum of its proper divisors (127167295).
805086401 is a wasteful number, since it uses less digits than its factorization.
805086401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4928.
The product of its (nonzero) digits is 7680, while the sum is 32.
The square root of 805086401 is about 28374.0444949253. The cubic root of 805086401 is about 930.2810269528.
The spelling of 805086401 in words is "eight hundred five million, eighty-six thousand, four hundred one".
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