Base | Representation |
---|---|
bin | 111101010010100011001 |
3 | 10210000221011 |
4 | 13222110121 |
5 | 1003231340 |
6 | 111013521 |
7 | 23033143 |
oct | 7522431 |
9 | 3700834 |
10 | 2008345 |
11 | 1151999 |
12 | 80a2a1 |
13 | 554191 |
14 | 3a3c93 |
15 | 29a0ea |
hex | 1ea519 |
2008345 has 4 divisors (see below), whose sum is σ = 2410020. Its totient is φ = 1606672.
The previous prime is 2008343. The next prime is 2008367. The reversal of 2008345 is 5438002.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5438002 = 2 ⋅2719001.
It can be written as a sum of positive squares in 2 ways, for example, as 549081 + 1459264 = 741^2 + 1208^2 .
It is a cyclic number.
It is not a de Polignac number, because 2008345 - 21 = 2008343 is a prime.
It is an Ulam number.
It is not an unprimeable number, because it can be changed into a prime (2008343) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200830 + ... + 200839.
It is an arithmetic number, because the mean of its divisors is an integer number (602505).
22008345 is an apocalyptic number.
It is an amenable number.
2008345 is a deficient number, since it is larger than the sum of its proper divisors (401675).
2008345 is an equidigital number, since it uses as much as digits as its factorization.
2008345 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 401674.
The product of its (nonzero) digits is 960, while the sum is 22.
The square root of 2008345 is about 1417.1608941824. The cubic root of 2008345 is about 126.1670958509.
The spelling of 2008345 in words is "two million, eight thousand, three hundred forty-five".
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