Base | Representation |
---|---|
bin | 100001000111… |
… | …011000011101 |
3 | 121100001002010 |
4 | 201013120131 |
5 | 4210242424 |
6 | 510021433 |
7 | 133534002 |
oct | 41073035 |
9 | 17301063 |
10 | 8680989 |
11 | 499a179 |
12 | 2aa7879 |
13 | 1a4c3a5 |
14 | 121d8a9 |
15 | b67229 |
hex | 84761d |
8680989 has 8 divisors (see below), whose sum is σ = 11747680. Its totient is φ = 5700816.
The previous prime is 8680951. The next prime is 8680993. The reversal of 8680989 is 9890868.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 8680989 - 28 = 8680733 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 (8680909) by changing a digit.
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, 21394 + ... + 21795.
It is an arithmetic number, because the mean of its divisors is an integer number (1468460).
Almost surely, 28680989 is an apocalyptic number.
It is an amenable number.
8680989 is a deficient number, since it is larger than the sum of its proper divisors (3066691).
8680989 is a wasteful number, since it uses less digits than its factorization.
8680989 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43259.
The product of its (nonzero) digits is 248832, while the sum is 48.
The square root of 8680989 is about 2946.3518119872. The cubic root of 8680989 is about 205.5210934949.
It can be divided in two parts, 8680 and 989, that added together give a palindrome (9669).
The spelling of 8680989 in words is "eight million, six hundred eighty thousand, nine hundred eighty-nine".
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