Base | Representation |
---|---|
bin | 111101111101100110001 |
3 | 10211011011110 |
4 | 13233230301 |
5 | 1004433020 |
6 | 111303533 |
7 | 23154330 |
oct | 7575461 |
9 | 3734143 |
10 | 2030385 |
11 | 1167505 |
12 | 81aba9 |
13 | 561216 |
14 | 3abd17 |
15 | 2a18e0 |
hex | 1efb31 |
2030385 has 32 divisors (see below), whose sum is σ = 3785472. Its totient is φ = 910080.
The previous prime is 2030383. The next prime is 2030389. The reversal of 2030385 is 5830302.
It is not a de Polignac number, because 2030385 - 21 = 2030383 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2030381) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6247 + ... + 6563.
It is an arithmetic number, because the mean of its divisors is an integer number (118296).
22030385 is an apocalyptic number.
It is an amenable number.
2030385 is a deficient number, since it is larger than the sum of its proper divisors (1755087).
2030385 is a wasteful number, since it uses less digits than its factorization.
2030385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 393.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 2030385 is about 1424.9157869853. The cubic root of 2030385 is about 126.6269458403.
Adding to 2030385 its reverse (5830302), we get a palindrome (7860687).
It can be divided in two parts, 2030 and 385, that added together give a triangular number (2415 = T69).
The spelling of 2030385 in words is "two million, thirty thousand, three hundred eighty-five".
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