Base | Representation |
---|---|
bin | 1011011001001110001010 |
3 | 12121202020120 |
4 | 23121032022 |
5 | 1231040030 |
6 | 144004110 |
7 | 34250064 |
oct | 13311612 |
9 | 5552216 |
10 | 2986890 |
11 | 1760105 |
12 | 1000636 |
13 | 8076ba |
14 | 57a734 |
15 | 3e0010 |
hex | 2d938a |
2986890 has 16 divisors (see below), whose sum is σ = 7168608. Its totient is φ = 796496.
The previous prime is 2986889. The next prime is 2986937. The reversal of 2986890 is 986892.
2986890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an Ulam number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 49752 + ... + 49811.
It is an arithmetic number, because the mean of its divisors is an integer number (448038).
22986890 is an apocalyptic number.
2986890 is an abundant number, since it is smaller than the sum of its proper divisors (4181718).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2986890 is a wasteful number, since it uses less digits than its factorization.
2986890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 99573.
The product of its (nonzero) digits is 62208, while the sum is 42.
The square root of 2986890 is about 1728.2621328954. The cubic root of 2986890 is about 144.0145625705.
The spelling of 2986890 in words is "two million, nine hundred eighty-six thousand, eight hundred ninety".
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