Base | Representation |
---|---|
bin | 100001111100… |
… | …100110101101 |
3 | 121202010010012 |
4 | 201330212231 |
5 | 4234231424 |
6 | 514423005 |
7 | 135432401 |
oct | 41744655 |
9 | 17663105 |
10 | 8898989 |
11 | 5028a40 |
12 | 2b91a65 |
13 | 1ac7698 |
14 | 1279101 |
15 | babb0e |
hex | 87c9ad |
8898989 has 8 divisors (see below), whose sum is σ = 9745920. Its totient is φ = 8058400.
The previous prime is 8898977. The next prime is 8898997. The reversal of 8898989 is 9898988.
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 8898989 - 28 = 8898733 is a prime.
It is an Ulam number.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8898949) 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, 1652 + ... + 4530.
It is an arithmetic number, because the mean of its divisors is an integer number (1218240).
Almost surely, 28898989 is an apocalyptic number.
It is an amenable number.
8898989 is a deficient number, since it is larger than the sum of its proper divisors (846931).
8898989 is a wasteful number, since it uses less digits than its factorization.
8898989 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3171.
The product of its digits is 2985984, while the sum is 59.
The square root of 8898989 is about 2983.1173292380. The cubic root of 8898989 is about 207.2272625164.
Subtracting 8898989 from its reverse (9898988), we obtain a palindrome (999999).
The spelling of 8898989 in words is "eight million, eight hundred ninety-eight thousand, nine hundred eighty-nine".
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