20010905 is an odd 8-digits composite number following 20010904
and preceding 20010906 . In scientific notation, it is written as 2.0010905 × 10^7.
The sum of its digits is 17. It has a total of 4 prime factors and 16 positive divisors.
There are 15699840 positive integers (up to 20010905) that are relatively prime to 20010905.
20010905 has 16 divisors, whose sum is 24482304
The reverse of 20010905 is 50901002
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million ten thousand nine hundred five
Scientific notation
2.0010905 × 10^7
Engineering notation
2.0010905 × 10^6
Prime Factorization
5 × 223 × 131 × 137
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20010905
Product of the distinct prime numbers
The prime factorization of 20010905 is 5 × 223 × 131 × 137.
Since it has a total of 4 prime factors.
4 , 5 , 83 , 76 , 244 , 466 , 3437 , 2465 , 90561 , 11975 , 285733 , 280669 , 9985043 , 6404918 , 69243243 , 91870848 , 498791655 , 494426147 , 8943938221 , 1794694480
n×2
40021810
n×3
60032715
n×4
80043620
n×5
100054525
n÷2
10005452.5
n÷3
6670301.6666667
n÷3
5002726.25
n÷5
4002181
n2
400436318919025
n3
8.0130931364383E+21
n4
1.6034924550942E+29
n5
3.2087335187107E+36
2 √n
4473.3550049152
3 √n
271.49108723583
4 √n
66.883144400628
5 √n
28.857143960606
1 , 5 , 131 , 137 , 223 , 655 , 685 , 1115 , 17947 , 29213 , 30551 , 89735 , 146065 , 152755 , 4002181 , 20010905
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20010904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20010905 can be divided by 16 positive divisors.
The sum of these divisors (counting 20010905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010101011110011001
3
Ternary
1101122122210122
4
Quaternary
1030111132121
5
Quinary
20110322110
6
Senary
1552523025
8
Octal
114253631
10
Decimal
20010905
12
Duodecimal
6850475
16
Hexadecimal
1315799
20
Vigesimal
651755
36
Base36
bwwih
md5
614ed783e66193791a408cfac7804118
sha1
ad1c650eff1c63c18b45ea872c448e7bc6a35587
sha256
c2dcd4c23a2dcad2b9dec427fdaba497f7310860c7f92efb8a3618203d233657
sha512
a90f29c630cc9844880f375c2e1c844378c8980a3b6c5a740f7247063cdaff1884fc863d2de953f67339f0664e199d56115a7d96d71de2000a4456fb4c11b46e
ripemd-160
bee2dc567708b6d294a5d8ea5468c3b426e24163
Diameter
40021810
Circumference
125732224.27937
Area
1.2580077977465E+15
Volume
3.3565166039954E+22
Surface area
5.0320311909862E+15
Circumference
125732224.27937
Perimeter
80043620
Area
400436318919025
Diagonal
28299693.24636
Surface area
2402617913514150
Volume
8.0130931364383E+21
Space diagonal
34659904.165434
Perimeter
60032715
Area
1.733940123909E+14
Altitude
17329952.082717
Surface area
1.733940123909E+14
Volume
9.4435208250915E+20
Height
9433231.0821199