20085985 is an odd 8-digits composite number following 20085984
and preceding 20085986 . In scientific notation, it is written as 2.0085985 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 15550320 positive integers (up to 20085985) that are relatively prime to 20085985.
20085985 has 8 divisors, whose sum is 24880896
The reverse of 20085985 is 58958002
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million eighty-five thousand nine hundred eighty-five
Scientific notation
2.0085985 × 10^7
Engineering notation
2.0085985 × 10^6
Prime Factorization
5 × 31 × 129587
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20085985
Product of the distinct prime numbers
The prime factorization of 20085985 is 5 × 31 × 129587.
Since it has a total of 3 prime factors.
5 , 5 , 31 , 26 , 763 , 171 , 5730 , 3068 , 70188 , 49733 , 709987 , 814404 , 1535979 , 5054 , 6444327 , 23512288 , 201279338 , 473790511 , 4050794240 , 2502603229
n×2
40171970
n×3
60257955
n×4
80343940
n×5
100429925
n÷2
10042992.5
n÷3
6695328.3333333
n÷3
5021496.25
n÷5
4017197
n2
403446793420225
n3
8.1036262409367E+21
n4
1.6276931512106E+29
n5
3.2693820219819E+36
2 √n
4481.7390597847
3 √n
271.83020418428
4 √n
66.945791949791
5 √n
28.878765672208
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20085984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20085985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20085985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100111110011100001
3
Ternary
1101210110210101
4
Quaternary
1030213303201
5
Quinary
20120222420
6
Senary
1554302401
8
Octal
114476341
10
Decimal
20085985
12
Duodecimal
6887a01
16
Hexadecimal
1327ce1
20
Vigesimal
65aej5
36
Base36
byig1
md5
009dce4719dce6d8ff5c67099c408ca6
sha1
645839c1a1f94fda13583b1e888c63c46e57c358
sha256
8c8492ae8dd3d49fc2f51051aab3fab4c11211f17dfd4a654ce34ab76ee41169
sha512
0888cc11b126c386261ac8bbc38e2a502c560ba22481dcc3f6cce9172b8cfc492918e9589a430f3647d78a156c187b87c94fd288dcf5d2e9097ae5cf0d890369
ripemd-160
34b37dfba94259e4cfa74ac0d49958cd42429770
Diameter
40171970
Circumference
126203965.83223
Area
1.2674654823233E+15
Volume
3.3944390221286E+22
Surface area
5.0698619292934E+15
Circumference
126203965.83223
Perimeter
80343940
Area
403446793420225
Diagonal
28405872.400623
Surface area
2420680760521350
Volume
8.1036262409367E+21
Space diagonal
34789946.540066
Perimeter
60257955
Area
1.7469758608864E+14
Altitude
17394973.270033
Surface area
1.7469758608864E+14
Volume
9.550215111946E+20
Height
9468624.1335409