20105309 is an odd 8-digits composite number following 20105308
and preceding 20105310 . In scientific notation, it is written as 2.0105309 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 17233116 positive integers (up to 20105309) that are relatively prime to 20105309.
20105309 has 4 divisors, whose sum is 22977504
The reverse of 20105309 is 90350102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred five thousand three hundred nine
Scientific notation
2.0105309 × 10^7
Engineering notation
2.0105309 × 10^6
Prime Factorization
7 × 2872187
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20105309
Product of the distinct prime numbers
The prime factorization of 20105309 is 7 × 2872187.
Since it has a total of 2 prime factors.
4 , 6 , 90 , 38 , 630 , 661 , 8623 , 2061 , 62727 , 53617 , 393300 , 462283 , 7843010 , 9407403 , 76804538 , 53187521 , 353530101 , 121117521 , 1260473521 , 2800625011
n×2
40210618
n×3
60315927
n×4
80421236
n×5
100526545
n÷2
10052654.5
n÷3
6701769.6666667
n÷3
5026327.25
n÷5
4021061.8
n2
404223449985481
n3
8.1270373670041E+21
n4
1.6339659751816E+29
n5
3.2851390826513E+36
2 √n
4483.8944010759
3 √n
271.91734891465
4 √n
66.961887675572
5 √n
28.884320178383
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20105308
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20105309 can be divided by 4 positive divisors.
The sum of these divisors (counting 20105309) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101100100001011101
3
Ternary
1101211110022002
4
Quaternary
1030230201131
5
Quinary
20121332214
6
Senary
1554532045
8
Octal
114544135
10
Decimal
20105309
12
Duodecimal
6897025
16
Hexadecimal
132c85d
20
Vigesimal
65d359
36
Base36
byxct
md5
d75a59f4a6fd7df0d85fcc955c31abef
sha1
2b558df29b083405143037f777c579c17ecdf83e
sha256
3d7e31d41c8f5744f3adc8c2fa5da46faaf0d096171b5c12a034d6cce6580fd2
sha512
e0708e3b4f1aa88f710afe7b9c10b6872b8f32f758513de8f0353cfdb86156b921560ed980a82a0f42cce12e0ae5460eb513454948205022c31b49f797282593
ripemd-160
a8502477e31bda76434120e6e9650eae92889f43
Diameter
40210618
Circumference
126325382.10511
Area
1.2699054208831E+15
Volume
3.404245451684E+22
Surface area
5.0796216835324E+15
Circumference
126325382.10511
Perimeter
80421236
Area
404223449985481
Diagonal
28433200.663502
Surface area
2425340699912886
Volume
8.1270373670041E+21
Space diagonal
34823416.689872
Perimeter
60315927
Area
1.7503388824641E+14
Altitude
17411708.344936
Surface area
1.7503388824641E+14
Volume
9.5778053886085E+20
Height
9477733.5545006