Base | Representation |
---|---|
bin | 1001100010110… |
… | …10001010011001 |
3 | 12120122112011020 |
4 | 10301122022121 |
5 | 130443423311 |
6 | 11535553053 |
7 | 1661336142 |
oct | 461321231 |
9 | 176575136 |
10 | 80061081 |
11 | 41213091 |
12 | 2298b789 |
13 | 13782129 |
14 | a8c0ac9 |
15 | 7066c06 |
hex | 4c5a299 |
80061081 has 16 divisors (see below), whose sum is σ = 110443200. Its totient is φ = 51547968.
The previous prime is 80061073. The next prime is 80061131. The reversal of 80061081 is 18016008.
It is not a de Polignac number, because 80061081 - 23 = 80061073 is a prime.
It is a super-2 number, since 2×800610812 = 12819553381777122, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80061011) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12835 + ... + 18023.
It is an arithmetic number, because the mean of its divisors is an integer number (6902700).
Almost surely, 280061081 is an apocalyptic number.
It is an amenable number.
80061081 is a deficient number, since it is larger than the sum of its proper divisors (30382119).
80061081 is a wasteful number, since it uses less digits than its factorization.
80061081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5368.
The product of its (nonzero) digits is 384, while the sum is 24.
The square root of 80061081 is about 8947.6857901918. The cubic root of 80061081 is about 430.9965726297.
Adding to 80061081 its reverse (18016008), we get a palindrome (98077089).
The spelling of 80061081 in words is "eighty million, sixty-one thousand, eighty-one".
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