Base | Representation |
---|---|
bin | 1001101001001… |
… | …01100011010101 |
3 | 12122012211221012 |
4 | 10310211203111 |
5 | 131202103130 |
6 | 12005502005 |
7 | 2001406022 |
oct | 464454325 |
9 | 178184835 |
10 | 80894165 |
11 | 41731a90 |
12 | 23111905 |
13 | 139b4391 |
14 | aa5a549 |
15 | 717d995 |
hex | 4d258d5 |
80894165 has 16 divisors (see below), whose sum is σ = 107899776. Its totient is φ = 57720000.
The previous prime is 80894123. The next prime is 80894167. The reversal of 80894165 is 56149808.
It is not a de Polignac number, because 80894165 - 226 = 13785301 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 (80894167) 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, 10961 + ... + 16790.
It is an arithmetic number, because the mean of its divisors is an integer number (6743736).
Almost surely, 280894165 is an apocalyptic number.
It is an amenable number.
80894165 is a deficient number, since it is larger than the sum of its proper divisors (27005611).
80894165 is a wasteful number, since it uses less digits than its factorization.
80894165 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27820.
The product of its (nonzero) digits is 69120, while the sum is 41.
The square root of 80894165 is about 8994.1183559035. The cubic root of 80894165 is about 432.4863439171.
The spelling of 80894165 in words is "eighty million, eight hundred ninety-four thousand, one hundred sixty-five".
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