20381605 is an odd 8-digits composite number following 20381604
and preceding 20381606 . In scientific notation, it is written as 2.0381605 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16098576 positive integers (up to 20381605) that are relatively prime to 20381605.
20381605 has 8 divisors, whose sum is 24768000
The reverse of 20381605 is 50618302
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million three hundred eighty-one thousand six hundred five
Scientific notation
2.0381605 × 10^7
Engineering notation
2.0381605 × 10^6
Prime Factorization
5 × 79 × 51599
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20381605
Product of the distinct prime numbers
The prime factorization of 20381605 is 5 × 79 × 51599.
Since it has a total of 3 prime factors.
5 , 7 , 88 , 71 , 624 , 217 , 8839 , 6888 , 345 , 53227 , 938654 , 143666 , 3460454 , 7961141 , 92353360 , 67444061 , 711439679 , 350676542 , 2484807598 , 8598448353
n×2
40763210
n×3
61144815
n×4
81526420
n×5
101908025
n÷2
10190802.5
n÷3
6793868.3333333
n÷3
5095401.25
n÷5
4076321
n2
415409822376025
n3
8.4667189127883E+21
n4
1.7256532052648E+29
n5
3.5171581996691E+36
2 √n
4514.5990962654
3 √n
273.15728881481
4 √n
67.190766450944
5 √n
28.963275553991
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
-20381604
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 20381605 can be divided by 8 positive divisors.
The sum of these divisors (counting 20381605) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101101111111110100101
3
Ternary
1102100111022021
4
Quaternary
1031233332211
5
Quinary
20204202410
6
Senary
2004503141
8
Octal
115577645
10
Decimal
20381605
12
Duodecimal
69aaab1
16
Hexadecimal
136ffa5
20
Vigesimal
677e05
36
Base36
c4ujp
md5
313010c852f834e61ececcba62337d6b
sha1
a584ef1c3c1eb583755d31b09bcabc6ca1460707
sha256
0a6891055f2f55cdb17ffbbd9d0f6d313dc5cf4574bd203ddab5273bae277f4d
sha512
c37bcc9da6e066d9ddb942c512361d27391892e450a82b6113e9af4c18885a1922e2e52ba4609c5d2648f9dbc2e8ba56ef0e6c733e2c4a117fc9de59e89ccffb
ripemd-160
2ea2351894e30417d600a5f99ef21739d43f3d20
Diameter
40763210
Circumference
128061401.07274
Area
1.3050484462056E+15
Volume
3.5465309248567E+22
Surface area
5.2201937848222E+15
Circumference
128061401.07274
Perimeter
81526420
Area
415409822376025
Diagonal
28823942.213931
Surface area
2492458934256150
Volume
8.4667189127883E+21
Space diagonal
35301975.3998
Perimeter
61144815
Area
1.7987772957961E+14
Altitude
17650987.6999
Surface area
1.7987772957961E+14
Volume
9.9781239293883E+20
Height
9607980.7379771