Base | Representation |
---|---|
bin | 1011011001001111101011 |
3 | 12121202101011 |
4 | 23121033223 |
5 | 1231040422 |
6 | 144004351 |
7 | 34250263 |
oct | 13311753 |
9 | 5552334 |
10 | 2986987 |
11 | 1760193 |
12 | 10006b7 |
13 | 807763 |
14 | 57a7a3 |
15 | 3e0077 |
hex | 2d93eb |
2986987 has 8 divisors (see below), whose sum is σ = 3169440. Its totient is φ = 2808960.
The previous prime is 2986979. The next prime is 2986999. The reversal of 2986987 is 7896892.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2986987 - 23 = 2986979 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2986987.
It is not an unprimeable number, because it can be changed into a prime (2986937) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339 + ... + 2467.
It is an arithmetic number, because the mean of its divisors is an integer number (396180).
22986987 is an apocalyptic number.
2986987 is a deficient number, since it is larger than the sum of its proper divisors (182453).
2986987 is a wasteful number, since it uses less digits than its factorization.
2986987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2213.
The product of its digits is 435456, while the sum is 49.
The square root of 2986987 is about 1728.2901955401. The cubic root of 2986987 is about 144.0161215232.
The spelling of 2986987 in words is "two million, nine hundred eighty-six thousand, nine hundred eighty-seven".
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