Base | Representation |
---|---|
bin | 11110101101100101000101 |
3 | 120011000220200 |
4 | 132231211011 |
5 | 4030113023 |
6 | 444321113 |
7 | 125301225 |
oct | 36554505 |
9 | 16130820 |
10 | 8051013 |
11 | 45a9933 |
12 | 2843199 |
13 | 188b719 |
14 | 10d8085 |
15 | a90743 |
hex | 7ad945 |
8051013 has 24 divisors (see below), whose sum is σ = 12459096. Its totient is φ = 4992000.
The previous prime is 8051011. The next prime is 8051033. The reversal of 8051013 is 3101508.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 3526884 + 4524129 = 1878^2 + 2127^2 .
It is not a de Polignac number, because 8051013 - 21 = 8051011 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8051011) 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 23 ways as a sum of consecutive naturals, for example, 15193 + ... + 15713.
It is an arithmetic number, because the mean of its divisors is an integer number (519129).
Almost surely, 28051013 is an apocalyptic number.
It is an amenable number.
8051013 is a deficient number, since it is larger than the sum of its proper divisors (4408083).
8051013 is a wasteful number, since it uses less digits than its factorization.
8051013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 645 (or 642 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
The square root of 8051013 is about 2837.4307039997. The cubic root of 8051013 is about 200.4242079353.
The spelling of 8051013 in words is "eight million, fifty-one thousand, thirteen".
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