Base | Representation |
---|---|
bin | 1010101010101… |
… | …01110111110001 |
3 | 20020101002102121 |
4 | 11111111313301 |
5 | 140401340224 |
6 | 12513514241 |
7 | 2134400434 |
oct | 525256761 |
9 | 206332377 |
10 | 89480689 |
11 | 46567191 |
12 | 25b72981 |
13 | 156cc76c |
14 | bc5381b |
15 | 7cc7be4 |
hex | 5555df1 |
89480689 has 16 divisors (see below), whose sum is σ = 96238800. Its totient is φ = 83026944.
The previous prime is 89480687. The next prime is 89480731. The reversal of 89480689 is 98608498.
It can be written as a sum of positive squares in 8 ways, for example, as 3640464 + 85840225 = 1908^2 + 9265^2 .
It is a cyclic number.
It is not a de Polignac number, because 89480689 - 21 = 89480687 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (89480681) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95029 + ... + 95965.
It is an arithmetic number, because the mean of its divisors is an integer number (6014925).
Almost surely, 289480689 is an apocalyptic number.
89480689 is a gapful number since it is divisible by the number (89) formed by its first and last digit.
It is an amenable number.
89480689 is a deficient number, since it is larger than the sum of its proper divisors (6758111).
89480689 is a wasteful number, since it uses less digits than its factorization.
89480689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1092.
The product of its (nonzero) digits is 995328, while the sum is 52.
The square root of 89480689 is about 9459.4232910892. The cubic root of 89480689 is about 447.2768697138.
The spelling of 89480689 in words is "eighty-nine million, four hundred eighty thousand, six hundred eighty-nine".
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