Base | Representation |
---|---|
bin | 1011011001111101010110 |
3 | 12121220101102 |
4 | 23121331112 |
5 | 1231134120 |
6 | 144030102 |
7 | 34261640 |
oct | 13317526 |
9 | 5556342 |
10 | 2989910 |
11 | 1762400 |
12 | 1002332 |
13 | 808ba1 |
14 | 57b890 |
15 | 3e0d75 |
hex | 2d9f56 |
2989910 has 48 divisors (see below), whose sum is σ = 6779808. Its totient is φ = 929280.
The previous prime is 2989879. The next prime is 2989927. The reversal of 2989910 is 199892.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8294 + ... + 8646.
It is an arithmetic number, because the mean of its divisors is an integer number (141246).
22989910 is an apocalyptic number.
2989910 is the 1412-nd pentagonal number.
2989910 is an abundant number, since it is smaller than the sum of its proper divisors (3789898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2989910 is a wasteful number, since it uses less digits than its factorization.
2989910 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 389 (or 378 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 38.
The square root of 2989910 is about 1729.1356222113. The cubic root of 2989910 is about 144.0630832145.
The spelling of 2989910 in words is "two million, nine hundred eighty-nine thousand, nine hundred ten".
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