8681985 is an odd 7-digits composite number following 8681984
and preceding 8681986 . In scientific notation, it is written as 8.681985 × 10^6.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 3981312 positive integers (up to 8681985) that are relatively prime to 8681985.
8681985 has 32 divisors, whose sum is 11289600
The reverse of 8681985 is 5891868
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 45
Digital Root 9
Name
eight million six hundred eighty-one thousand nine hundred eighty-five
Scientific notation
8.681985 × 10^6
Engineering notation
8.681985 × 10^6
Prime Factorization
39 × 9 × 15 × 17 × 97
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
8681985
Product of the distinct prime numbers
The prime factorization of 8681985 is 39 × 9 × 15 × 17 × 97.
Since it has a total of 5 prime factors.
2 , 9 , 36 , 71 , 398 , 172 , 5210 , 5911 , 84916 , 80586 , 836437 , 909298 , 5012217 , 2817940 , 72106481 , 38044135 , 367139024 , 291073914 , 3361518024 , 1538116308
n×2
17363970
n×3
26045955
n×4
34727940
n×5
43409925
n÷2
4340992.5
n÷3
2893995
n÷3
2170496.25
n÷5
1736397
n2
75376863540225
n3
6.5442079860328E+20
n4
5.6816715571617E+27
n5
4.9328187234205E+34
2 √n
2946.5208297244
3 √n
205.52895324378
4 √n
54.281864648559
5 √n
24.418771234659
1 , 9 , 15 , 17 , 39 , 97 , 135 , 153 , 255 , 351 , 585 , 663 , 873 , 1455 , 1649 , 2295 , 3783 , 5265 , 5967 , 9945 , 13095 , 14841 , 24735 , 34047 , 56745 , 64311 , 89505 , 222615 , 510705 , 578799 , 964665 , 8681985
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-8681984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 8681985 can be divided by 32 positive divisors.
The sum of these divisors (counting 8681985) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100001000111101000000001
3
Ternary
121100002110000
4
Quaternary
201013220001
5
Quinary
4210310420
6
Senary
510030213
8
Octal
41075001
10
Decimal
8681985
12
Duodecimal
2aa8369
16
Hexadecimal
847a01
20
Vigesimal
2e54j5
36
Base36
56329
md5
f36073e9ac62b5759f9e2a1a0531cb4b
sha1
0baf13c306e9a8d57927b10d48ed381884aeb9c9
sha256
561372525705fdbf3c52f016cd37d7736b0a0b5fc6aa1842a78ce619298ee2a1
sha512
ed05e8ba800521c1b7a66aba36bf2acc6195c79b71ed61d9010ab0bc9e34bbcf5b12925d40d4e6bd2966a6f5cc6be38fadc5c5684cb7ba2e4fa070a34224cfd0
ripemd-160
1fc2c4e713afb52318886226a9f65c402a6e4779
Diameter
17363970
Circumference
54550520.589154
Area
2.3680340074861E+14
Volume
2.7412314309979E+21
Surface area
9.4721360299444E+14
Circumference
54550520.589154
Perimeter
34727940
Area
75376863540225
Diagonal
12278180.93532
Surface area
452261181241350
Volume
6.5442079860328E+20
Space diagonal
15037639.130551
Perimeter
26045955
Area
32639139341714
Altitude
7518819.5652754
Surface area
32639139341714
Volume
7.7124230740316E+19
Height
4092726.9784399