Base | Representation |
---|---|
bin | 1001101001110… |
… | …00010101100011 |
3 | 12122100202110220 |
4 | 10310320111203 |
5 | 131212033412 |
6 | 12011254123 |
7 | 2002146240 |
oct | 464702543 |
9 | 178322426 |
10 | 80971107 |
11 | 41784878 |
12 | 2314a343 |
13 | 13a103c9 |
14 | aa7a5c7 |
15 | 719668c |
hex | 4d38563 |
80971107 has 16 divisors (see below), whose sum is σ = 126255360. Its totient is φ = 45192672.
The previous prime is 80971087. The next prime is 80971117. The reversal of 80971107 is 70117908.
It is not a de Polignac number, because 80971107 - 210 = 80970083 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80971117) 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, 43932 + ... + 45737.
It is an arithmetic number, because the mean of its divisors is an integer number (7890960).
Almost surely, 280971107 is an apocalyptic number.
80971107 is a deficient number, since it is larger than the sum of its proper divisors (45284253).
80971107 is a wasteful number, since it uses less digits than its factorization.
80971107 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89722.
The product of its (nonzero) digits is 3528, while the sum is 33.
The square root of 80971107 is about 8998.3946901656. The cubic root of 80971107 is about 432.6234193977.
The spelling of 80971107 in words is "eighty million, nine hundred seventy-one thousand, one hundred seven".
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