Base | Representation |
---|---|
bin | 1001101000110… |
… | …00110110010010 |
3 | 12122010012112222 |
4 | 10310120312102 |
5 | 131143422010 |
6 | 12004421042 |
7 | 2001101225 |
oct | 464306622 |
9 | 178105488 |
10 | 80842130 |
11 | 416a6986 |
12 | 230a7782 |
13 | 139967a5 |
14 | aa455bc |
15 | 716d355 |
hex | 4d18d92 |
80842130 has 8 divisors (see below), whose sum is σ = 145515852. Its totient is φ = 32336848.
The previous prime is 80842109. The next prime is 80842147. The reversal of 80842130 is 3124808.
It can be written as a sum of positive squares in 2 ways, for example, as 77035729 + 3806401 = 8777^2 + 1951^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 80842130.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4042097 + ... + 4042116.
Almost surely, 280842130 is an apocalyptic number.
80842130 is a deficient number, since it is larger than the sum of its proper divisors (64673722).
80842130 is a wasteful number, since it uses less digits than its factorization.
80842130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8084220.
The product of its (nonzero) digits is 1536, while the sum is 26.
The square root of 80842130 is about 8991.2251667946. The cubic root of 80842130 is about 432.3935920524.
Adding to 80842130 its reverse (3124808), we get a palindrome (83966938).
The spelling of 80842130 in words is "eighty million, eight hundred forty-two thousand, one hundred thirty".
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