Base | Representation |
---|---|
bin | 10000101111100100… |
… | …11011100111111101 |
3 | 212012110110002020201 |
4 | 20113302123213331 |
5 | 121402142442114 |
6 | 4043550043501 |
7 | 435520334125 |
oct | 102762334775 |
9 | 25173402221 |
10 | 8989030909 |
11 | 38a3089a71 |
12 | 18aa4a9591 |
13 | b0340c601 |
14 | 613b9bc85 |
15 | 379261874 |
hex | 217c9b9fd |
8989030909 has 4 divisors (see below), whose sum is σ = 9278999680. Its totient is φ = 8699062140.
The previous prime is 8989030889. The next prime is 8989030931. The reversal of 8989030909 is 9090309898.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 8989030909 - 27 = 8989030781 is a prime.
It is an alternating number because its digits alternate between even and odd.
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 8989030909.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8989060909) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144984339 + ... + 144984400.
It is an arithmetic number, because the mean of its divisors is an integer number (2319749920).
Almost surely, 28989030909 is an apocalyptic number.
It is an amenable number.
8989030909 is a deficient number, since it is larger than the sum of its proper divisors (289968771).
8989030909 is a wasteful number, since it uses less digits than its factorization.
8989030909 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 289968770.
The product of its (nonzero) digits is 1259712, while the sum is 55.
The square root of 8989030909 is about 94810.4999934079. The cubic root of 8989030909 is about 2079.2384191790.
The spelling of 8989030909 in words is "eight billion, nine hundred eighty-nine million, thirty thousand, nine hundred nine".
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