Base | Representation |
---|---|
bin | 1010101011000… |
… | …10010111110101 |
3 | 20020110200200001 |
4 | 11111202113311 |
5 | 140410010033 |
6 | 12514551301 |
7 | 2135002633 |
oct | 525422765 |
9 | 206420601 |
10 | 89531893 |
11 | 465a1700 |
12 | 25b98531 |
13 | 15719b69 |
14 | bc68353 |
15 | 7cd7e7d |
hex | 55625f5 |
89531893 has 24 divisors (see below), whose sum is σ = 104799744. Its totient is φ = 76259040.
The previous prime is 89531887. The next prime is 89531909. The reversal of 89531893 is 39813598.
It is not a de Polignac number, because 89531893 - 225 = 55977461 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 (89531833) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147196 + ... + 147802.
It is an arithmetic number, because the mean of its divisors is an integer number (4366656).
Almost surely, 289531893 is an apocalyptic number.
It is an amenable number.
89531893 is a deficient number, since it is larger than the sum of its proper divisors (15267851).
89531893 is a wasteful number, since it uses less digits than its factorization.
89531893 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 705 (or 694 counting only the distinct ones).
The product of its digits is 233280, while the sum is 46.
The square root of 89531893 is about 9462.1294115014. The cubic root of 89531893 is about 447.3621693018.
The spelling of 89531893 in words is "eighty-nine million, five hundred thirty-one thousand, eight hundred ninety-three".
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