Base | Representation |
---|---|
bin | 111101101010001001001 |
3 | 10210122111120 |
4 | 13231101021 |
5 | 1004123200 |
6 | 111145453 |
7 | 23113311 |
oct | 7552111 |
9 | 3718446 |
10 | 2020425 |
11 | 115aa80 |
12 | 815289 |
13 | 559824 |
14 | 3a8441 |
15 | 29d9a0 |
hex | 1ed449 |
2020425 has 48 divisors (see below), whose sum is σ = 3809280. Its totient is φ = 936000.
The previous prime is 2020423. The next prime is 2020429. The reversal of 2020425 is 5240202.
2020425 = 1762 + 1772 + ... + 2252.
It is not a de Polignac number, because 2020425 - 21 = 2020423 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a nialpdrome in base 8.
It is not an unprimeable number, because it can be changed into a prime (2020423) 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 47 ways as a sum of consecutive naturals, for example, 25536 + ... + 25614.
It is an arithmetic number, because the mean of its divisors is an integer number (79360).
22020425 is an apocalyptic number.
2020425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2020425 is a deficient number, since it is larger than the sum of its proper divisors (1788855).
2020425 is a wasteful number, since it uses less digits than its factorization.
2020425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 134 (or 129 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 15.
The square root of 2020425 is about 1421.4165469700. The cubic root of 2020425 is about 126.4195513006.
Adding to 2020425 its reverse (5240202), we get a palindrome (7260627).
The spelling of 2020425 in words is "two million, twenty thousand, four hundred twenty-five".
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