Base | Representation |
---|---|
bin | 1001100010110… |
… | …00001001010100 |
3 | 12120122002211021 |
4 | 10301120021110 |
5 | 130443142240 |
6 | 11535450524 |
7 | 1661303101 |
oct | 461301124 |
9 | 176562737 |
10 | 80052820 |
11 | 41207961 |
12 | 22986a44 |
13 | 1377b443 |
14 | a8bbaa8 |
15 | 706454a |
hex | 4c58254 |
80052820 has 12 divisors (see below), whose sum is σ = 168110964. Its totient is φ = 32021120.
The previous prime is 80052803. The next prime is 80052821. The reversal of 80052820 is 2825008.
It can be written as a sum of positive squares in 2 ways, for example, as 30096196 + 49956624 = 5486^2 + 7068^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80052821) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001301 + ... + 2001340.
It is an arithmetic number, because the mean of its divisors is an integer number (14009247).
Almost surely, 280052820 is an apocalyptic number.
It is an amenable number.
80052820 is an abundant number, since it is smaller than the sum of its proper divisors (88058144).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80052820 is a wasteful number, since it uses less digits than its factorization.
80052820 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4002650 (or 4002648 counting only the distinct ones).
The product of its (nonzero) digits is 1280, while the sum is 25.
The square root of 80052820 is about 8947.2241505397. The cubic root of 80052820 is about 430.9817481769.
Adding to 80052820 its reverse (2825008), we get a palindrome (82877828).
The spelling of 80052820 in words is "eighty million, fifty-two thousand, eight hundred twenty".
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