20003985 is an odd 8-digits composite number following 20003984
and preceding 20003986 . In scientific notation, it is written as 2.0003985 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 9884160 positive integers (up to 20003985) that are relatively prime to 20003985.
20003985 has 32 divisors, whose sum is 30597120
The reverse of 20003985 is 58930002
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million three thousand nine hundred eighty-five
Scientific notation
2.0003985 × 10^7
Engineering notation
2.0003985 × 10^6
Prime Factorization
15 × 3 × 17 × 79 × 331
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20003985
Product of the distinct prime numbers
The prime factorization of 20003985 is 15 × 3 × 17 × 79 × 331.
Since it has a total of 5 prime factors.
7 , 4 , 32 , 33 , 592 , 684 , 6472 , 1165 , 8963 , 69806 , 51617 , 88921 , 3449039 , 542480 , 75801989 , 6095914 , 666755556 , 474452967 , 143959420 , 3018899843
n×2
40007970
n×3
60011955
n×4
80015940
n×5
100019925
n÷2
10001992.5
n÷3
6667995
n÷3
5000996.25
n÷5
4000797
n2
400159415880225
n3
8.0047829528768E+21
n4
1.601275581176E+29
n5
3.2031892706712E+36
2 √n
4472.581469353
3 √n
271.45978871925
4 √n
66.877361411415
5 √n
28.855147858339
1 , 3 , 15 , 17 , 45 , 51 , 79 , 237 , 255 , 331 , 765 , 993 , 1185 , 1343 , 3555 , 4029 , 4965 , 5627 , 14895 , 16881 , 20145 , 26149 , 60435 , 78447 , 84405 , 253215 , 392235 , 444533 , 1176705 , 1333599 , 6667995 , 20003985
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
-20003984
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 20003985 can be divided by 32 positive divisors.
The sum of these divisors (counting 20003985) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100010011110010010001
3
Ternary
1101122022022100
4
Quaternary
1030103302101
5
Quinary
20110111420
6
Senary
1552431013
8
Octal
114236221
10
Decimal
20003985
12
Duodecimal
6848469
16
Hexadecimal
1313c91
20
Vigesimal
6509j5
36
Base36
bwr69
md5
cdc58800b4f73030e4399fbbd7261eff
sha1
d259d68bf705601f120c9dddd10f9ff64ac6e98e
sha256
1d4913780f86a792588bfc2e561d6b10ee2decf69811a573c1f5efea015d36c3
sha512
015806829212321fc8ab3d55fad6626efbf421c23c1f590f89146f4b33d4a8db6bffac00afc11a2b94d0725ee4b5e5940a47e2962f224fcacecbf1e0bb37fa2b
ripemd-160
7551b406b210d2762d3ba870ec55bcbbd95ca113
Diameter
40007970
Circumference
125688744.63704
Area
1.2571378811941E+15
Volume
3.3530356424451E+22
Surface area
5.0285515247764E+15
Circumference
125688744.63704
Perimeter
80015940
Area
400159415880225
Diagonal
28289906.888508
Surface area
2400956495281350
Volume
8.0047829528768E+21
Space diagonal
34647918.373846
Perimeter
60011955
Area
1.7327410985791E+14
Altitude
17323959.186923
Surface area
1.7327410985791E+14
Volume
9.4337271798427E+20
Height
9429968.962836