Base | Representation |
---|---|
bin | 111101010101100011101 |
3 | 10210010001012 |
4 | 13222230131 |
5 | 1003304020 |
6 | 111025005 |
7 | 23040503 |
oct | 7525435 |
9 | 3703035 |
10 | 2009885 |
11 | 1153069 |
12 | 80b165 |
13 | 554aa7 |
14 | 3a4673 |
15 | 29a7c5 |
hex | 1eab1d |
2009885 has 8 divisors (see below), whose sum is σ = 2489856. Its totient is φ = 1555920.
The previous prime is 2009881. The next prime is 2009897. The reversal of 2009885 is 5889002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2009885 - 22 = 2009881 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2009881) 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 7 ways as a sum of consecutive naturals, for example, 6329 + ... + 6638.
It is an arithmetic number, because the mean of its divisors is an integer number (311232).
22009885 is an apocalyptic number.
It is an amenable number.
2009885 is a deficient number, since it is larger than the sum of its proper divisors (479971).
2009885 is a wasteful number, since it uses less digits than its factorization.
2009885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13003.
The product of its (nonzero) digits is 5760, while the sum is 32.
The square root of 2009885 is about 1417.7041299227. The cubic root of 2009885 is about 126.1993359435.
The spelling of 2009885 in words is "two million, nine thousand, eight hundred eighty-five".
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