20105940 is an even 8-digits composite number following 20105939
and preceding 20105941 . In scientific notation, it is written as 2.0105940 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors.
There are 5236224 positive integers (up to 20105940) that are relatively prime to 20105940.
20105940 has 12 divisors, whose sum is 35244468
The reverse of 20105940 is 04950102
Previous prime number is 645
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred five thousand nine hundred forty
Scientific notation
2.0105940 × 10^7
Engineering notation
2.0105940 × 10^6
Prime Factorization
2 × 2 × 645 × 7793
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10052970
Product of the distinct prime numbers
The prime factorization of 20105940 is 2 × 2 × 645 × 7793.
Since it has a total of 4 prime factors.
3 , 5 , 35 , 77 , 282 , 625 , 7566 , 731 , 90377 , 35776 , 576143 , 664245 , 248652 , 8980205 , 22368512 , 56568872 , 527820431 , 355463208 , 4218747881 , 5070208514
n×2
40211880
n×3
60317820
n×4
80423760
n×5
100529700
n÷2
10052970
n÷3
6701980
n÷3
5026485
n÷5
4021188
n2
404248823283600
n3
8.1278025860107E+21
n4
1.6341711112618E+29
n5
3.2856546312762E+36
2 √n
4483.9647634655
3 √n
271.92019357046
4 √n
66.962413064834
5 √n
28.884501481513
1 , 2 , 4 , 645 , 1290 , 2580 , 7793 , 15586 , 31172 , 5026485 , 10052970 , 20105940
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20105939
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20105940 can be divided by 12 positive divisors.
The sum of these divisors (counting 20105940) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100101100101011010100
3
Ternary
1101211111011110
4
Quaternary
1030230223110
5
Quinary
20121342230
6
Senary
1554535020
8
Octal
114545324
10
Decimal
20105940
12
Duodecimal
6897470
16
Hexadecimal
132cad4
20
Vigesimal
65d4h0
36
Base36
byxuc
md5
c39ce7a24d610593759e33d343839ca0
sha1
4dc6fd532ef2c711ff04b4acaa27ad51315d36ce
sha256
f4ddf32b9f7effc425065fb48bd72385e2877ee7a3262e76cc2019b021b06508
sha512
6089950b5e26573010476755490c8c54c449a894fce4aed2edaf9c2eedbd68fd6fd1e2f2b65324217285082e36c36df02e15d06cfe44072395c1b3863e389bb0
ripemd-160
ff12b61ebaf572bb716f0e9f1bff84ce0c31cee1
Diameter
40211880
Circumference
126329346.79503
Area
1.2699851334501E+15
Volume
3.4045659858719E+22
Surface area
5.0799405338003E+15
Circumference
126329346.79503
Perimeter
80423760
Area
404248823283600
Diagonal
28434093.03226
Surface area
2425492939701600
Volume
8.1278025860107E+21
Space diagonal
34824509.613931
Perimeter
60317820
Area
1.7504487520678E+14
Altitude
17412254.806966
Surface area
1.7504487520678E+14
Volume
9.5787072078562E+20
Height
9478031.0107532