Base | Representation |
---|---|
bin | 111101101001110000001 |
3 | 10210122020011 |
4 | 13231032001 |
5 | 1004121400 |
6 | 111144521 |
7 | 23112604 |
oct | 7551601 |
9 | 3718204 |
10 | 2020225 |
11 | 115a909 |
12 | 815141 |
13 | 5596cc |
14 | 3a833b |
15 | 29d8ba |
hex | 1ed381 |
2020225 has 6 divisors (see below), whose sum is σ = 2505110. Its totient is φ = 1616160.
The previous prime is 2020223. The next prime is 2020231. The reversal of 2020225 is 5220202.
It can be written as a sum of positive squares in 3 ways, for example, as 288369 + 1731856 = 537^2 + 1316^2 .
It is not a de Polignac number, because 2020225 - 21 = 2020223 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2020223) 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 5 ways as a sum of consecutive naturals, for example, 40380 + ... + 40429.
22020225 is an apocalyptic number.
2020225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2020225 is a deficient number, since it is larger than the sum of its proper divisors (484885).
2020225 is an equidigital number, since it uses as much as digits as its factorization.
2020225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 80819 (or 80814 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 13.
The square root of 2020225 is about 1421.3461928749. The cubic root of 2020225 is about 126.4153797782.
Adding to 2020225 its reverse (5220202), we get a palindrome (7240427).
The spelling of 2020225 in words is "two million, twenty thousand, two hundred twenty-five".
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