Base | Representation |
---|---|
bin | 1011011001110101001101 |
3 | 12121212200010 |
4 | 23121311031 |
5 | 1231130024 |
6 | 144023433 |
7 | 34260264 |
oct | 13316515 |
9 | 5555603 |
10 | 2989389 |
11 | 1761a77 |
12 | 1001b79 |
13 | 808890 |
14 | 57b5db |
15 | 3e0b29 |
hex | 2d9d4d |
2989389 has 8 divisors (see below), whose sum is σ = 4292512. Its totient is φ = 1839600.
The previous prime is 2989373. The next prime is 2989391. The reversal of 2989389 is 9839892.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2989389 - 24 = 2989373 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 (2989309) 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, 38287 + ... + 38364.
It is an arithmetic number, because the mean of its divisors is an integer number (536564).
22989389 is an apocalyptic number.
It is an amenable number.
2989389 is a deficient number, since it is larger than the sum of its proper divisors (1303123).
2989389 is a wasteful number, since it uses less digits than its factorization.
2989389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76667.
The product of its digits is 279936, while the sum is 48.
The square root of 2989389 is about 1728.9849623406. The cubic root of 2989389 is about 144.0547149329.
The spelling of 2989389 in words is "two million, nine hundred eighty-nine thousand, three hundred eighty-nine".
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