20105138 is an even 8-digits composite number following 20105137
and preceding 20105139 . In scientific notation, it is written as 2.0105138 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 10044544 positive integers (up to 20105138) that are relatively prime to 20105138.
20105138 has 8 divisors, whose sum is 30181788
The reverse of 20105138 is 83150102
Previous prime number is 1553
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred five thousand one hundred thirty-eight
Scientific notation
2.0105138 × 10^7
Engineering notation
2.0105138 × 10^6
Prime Factorization
2 × 1553 × 6473
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105138
Product of the distinct prime numbers
The prime factorization of 20105138 is 2 × 1553 × 6473.
Since it has a total of 3 prime factors.
3 , 8 , 81 , 2 , 387 , 125 , 6084 , 8578 , 49097 , 34763 , 65561 , 27216 , 2731200 , 871446 , 54758280 , 23564407 , 206448164 , 191737627 , 7936704943 , 4848973966
n×2
40210276
n×3
60315414
n×4
80420552
n×5
100525690
n÷2
10052569
n÷3
6701712.6666667
n÷3
5026284.5
n÷5
4021027.6
n2
404216573999044
n3
8.126830002138E+21
n4
1.6339103869552E+29
n5
3.2849993809369E+36
2 √n
4483.8753327897
3 √n
271.91657800718
4 √n
66.961745293785
5 √n
28.884271044739
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
-20105137
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 20105138 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105138) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100011110110010
3
Ternary
1101211110001202
4
Quaternary
1030230132302
5
Quinary
20121331023
6
Senary
1554531202
8
Octal
114543662
10
Decimal
20105138
12
Duodecimal
6896b02
16
Hexadecimal
132c7b2
20
Vigesimal
65d2gi
36
Base36
byx82
md5
e1309f4d61f98adfe5fe07d94f22fd84
sha1
9aa98b471fb249ab16c8a4804dd9a9b5f0336403
sha256
1e372b72254b7a76b62fc559b0d069696c121dfbda4a95a47b4a51243566916f
sha512
13b1de42656e083b7f803548e5660786372bb2dbceb0cfc53996abe169927e62861b823817e15d7efd7c3a78720eb75075e2ab1cd419b7d02f7a3fd85847140e
ripemd-160
665f5cd48b7442f8610d4e35e9fc38ccc1d8f7bb
Diameter
40210276
Circumference
126324307.68042
Area
1.2698838193346E+15
Volume
3.404158590892E+22
Surface area
5.0795352773385E+15
Circumference
126324307.68042
Perimeter
80420552
Area
404216573999044
Diagonal
28432958.832983
Surface area
2425299443994264
Volume
8.126830002138E+21
Space diagonal
34823120.509184
Perimeter
60315414
Area
1.7503091085694E+14
Altitude
17411560.254592
Surface area
1.7503091085694E+14
Volume
9.5775610067701E+20
Height
9477652.9443276