Base | Representation |
---|---|
bin | 111011111001110… |
… | …001110100111001 |
3 | 2121001002101121211 |
4 | 323321301310321 |
5 | 4024240031131 |
6 | 243420403121 |
7 | 33622243051 |
oct | 7371616471 |
9 | 2531071554 |
10 | 1005002041 |
11 | 47632a9aa |
12 | 2406a64a1 |
13 | 13029bb84 |
14 | 97690561 |
15 | 5d36d5b1 |
hex | 3be71d39 |
1005002041 has 4 divisors (see below), whose sum is σ = 1006181092. Its totient is φ = 1003822992.
The previous prime is 1005002021. The next prime is 1005002069. The reversal of 1005002041 is 1402005001.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1402005001 = 27361 ⋅51241.
It can be written as a sum of positive squares in 2 ways, for example, as 16842816 + 988159225 = 4104^2 + 31435^2 .
It is a cyclic number.
It is not a de Polignac number, because 1005002041 - 27 = 1005001913 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1005002021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588246 + ... + 589951.
It is an arithmetic number, because the mean of its divisors is an integer number (251545273).
Almost surely, 21005002041 is an apocalyptic number.
It is an amenable number.
1005002041 is a deficient number, since it is larger than the sum of its proper divisors (1179051).
1005002041 is an equidigital number, since it uses as much as digits as its factorization.
1005002041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1179050.
The product of its (nonzero) digits is 40, while the sum is 13.
The square root of 1005002041 is about 31701.7671589456. The cubic root of 1005002041 is about 1001.6645746538.
Adding to 1005002041 its reverse (1402005001), we get a palindrome (2407007042).
The spelling of 1005002041 in words is "one billion, five million, two thousand, forty-one".
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