Base | Representation |
---|---|
bin | 1001101000110… |
… | …01000101001001 |
3 | 12122010020212012 |
4 | 10310121011021 |
5 | 131143434311 |
6 | 12004425305 |
7 | 2001104054 |
oct | 464310511 |
9 | 178106765 |
10 | 80843081 |
11 | 416a7670 |
12 | 230a8235 |
13 | 13997057 |
14 | aa45a9b |
15 | 716d78b |
hex | 4d19149 |
80843081 has 8 divisors (see below), whose sum is σ = 92834400. Its totient is φ = 69625440.
The previous prime is 80843069. The next prime is 80843111. The reversal of 80843081 is 18034808.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80843081 - 26 = 80843017 is a prime.
It is a super-2 number, since 2×808430812 = 13071207491145122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80848081) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193196 + ... + 193613.
It is an arithmetic number, because the mean of its divisors is an integer number (11604300).
Almost surely, 280843081 is an apocalyptic number.
It is an amenable number.
80843081 is a deficient number, since it is larger than the sum of its proper divisors (11991319).
80843081 is a wasteful number, since it uses less digits than its factorization.
80843081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 386839.
The product of its (nonzero) digits is 6144, while the sum is 32.
The square root of 80843081 is about 8991.2780515342. The cubic root of 80843081 is about 432.3952875574.
Adding to 80843081 its reverse (18034808), we get a palindrome (98877889).
The spelling of 80843081 in words is "eighty million, eight hundred forty-three thousand, eighty-one".
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