Base | Representation |
---|---|
bin | 111111001101000101101 |
3 | 10220012222212 |
4 | 13321220231 |
5 | 1012233320 |
6 | 112220205 |
7 | 23414102 |
oct | 7715055 |
9 | 3805885 |
10 | 2071085 |
11 | 1195045 |
12 | 83a665 |
13 | 5768c3 |
14 | 3bcaa9 |
15 | 2ad9c5 |
hex | 1f9a2d |
2071085 has 4 divisors (see below), whose sum is σ = 2485308. Its totient is φ = 1656864.
The previous prime is 2071073. The next prime is 2071087. The reversal of 2071085 is 5801702.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5801702 = 2 ⋅2900851.
It can be written as a sum of positive squares in 2 ways, for example, as 357604 + 1713481 = 598^2 + 1309^2 .
It is a cyclic number.
It is not a de Polignac number, because 2071085 - 212 = 2066989 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2071085.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2071087) 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 3 ways as a sum of consecutive naturals, for example, 207104 + ... + 207113.
It is an arithmetic number, because the mean of its divisors is an integer number (621327).
22071085 is an apocalyptic number.
It is an amenable number.
2071085 is a deficient number, since it is larger than the sum of its proper divisors (414223).
2071085 is an equidigital number, since it uses as much as digits as its factorization.
2071085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 414222.
The product of its (nonzero) digits is 560, while the sum is 23.
The square root of 2071085 is about 1439.1264711623. The cubic root of 2071085 is about 127.4674529252.
Adding to 2071085 its reverse (5801702), we get a palindrome (7872787).
The spelling of 2071085 in words is "two million, seventy-one thousand, eighty-five".
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