Base | Representation |
---|---|
bin | 1010100111000… |
… | …01101011110101 |
3 | 20012110220121200 |
4 | 11103201223311 |
5 | 140241123124 |
6 | 12455403113 |
7 | 2130346116 |
oct | 523415365 |
9 | 205426550 |
10 | 89004789 |
11 | 46271685 |
12 | 25983499 |
13 | 15593c73 |
14 | bb6c20d |
15 | 7c31bc9 |
hex | 54e1af5 |
89004789 has 12 divisors (see below), whose sum is σ = 129701676. Its totient is φ = 58810752.
The previous prime is 89004781. The next prime is 89004791. The reversal of 89004789 is 98740098.
It can be written as a sum of positive squares in 2 ways, for example, as 3294225 + 85710564 = 1815^2 + 9258^2 .
It is not a de Polignac number, because 89004789 - 23 = 89004781 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89004781) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42742 + ... + 44775.
It is an arithmetic number, because the mean of its divisors is an integer number (10808473).
Almost surely, 289004789 is an apocalyptic number.
It is an amenable number.
89004789 is a deficient number, since it is larger than the sum of its proper divisors (40696887).
89004789 is a wasteful number, since it uses less digits than its factorization.
89004789 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87636 (or 87633 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 45.
The square root of 89004789 is about 9434.2349451347. The cubic root of 89004789 is about 446.4825175288.
It can be divided in two parts, 8900 and 4789, that added together give a square (13689 = 1172).
The spelling of 89004789 in words is "eighty-nine million, four thousand, seven hundred eighty-nine".
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