20101491 is an odd 8-digits composite number following 20101490
and preceding 20101492 . In scientific notation, it is written as 2.0101491 × 10^7.
The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors.
There are 13400988 positive integers (up to 20101491) that are relatively prime to 20101491.
20101491 has 4 divisors, whose sum is 22335000
The reverse of 20101491 is 19410102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred one thousand four hundred ninety-one
Scientific notation
2.0101491 × 10^7
Engineering notation
2.0101491 × 10^6
Prime Factorization
9 × 2233499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20101491
Product of the distinct prime numbers
The prime factorization of 20101491 is 9 × 2233499.
Since it has a total of 2 prime factors.
2 , 9 , 37 , 52 , 87 , 782 , 5556 , 8185 , 1106 , 60247 , 561947 , 799411 , 5273166 , 5010373 , 31708570 , 26628618 , 849374036 , 61629063 , 9232638012 , 5821575697
n×2
40202982
n×3
60304473
n×4
80405964
n×5
100507455
n÷2
10050745.5
n÷3
6700497
n÷3
5025372.75
n÷5
4020298.2
n2
404069940423081
n3
8.1224082707851E+21
n4
1.6327251675351E+29
n5
3.2820210260681E+36
2 √n
4483.4686348853
3 √n
271.90013544859
4 √n
66.958708432028
5 √n
28.88322306804
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
-20101490
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 20101491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20101491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101011100101110011
3
Ternary
1101211021001200
4
Quaternary
1030223211303
5
Quinary
20121221431
6
Senary
1554502243
8
Octal
114534563
10
Decimal
20101491
12
Duodecimal
6894983
16
Hexadecimal
132b973
20
Vigesimal
65cdeb
36
Base36
byuer
md5
d428d861fd14e5bf01ca5f1f2b22850d
sha1
59610b51db687ba4895e6c518471d41aeb8a431f
sha256
1063ddd59928aeead01e3b65185d8e772610d8c214c8c5aabedf0453759aa29f
sha512
3c84bdde6514115327ad52479705860dd11e5ea672401c04a68d100150657dd2826e8843225321f4d5a291aca9c64be0fbdff021637fd89e9988086fb6379f3e
ripemd-160
25fcf7a99d6e3a1bbc96127daf6fe0ec5bcf56a8
Diameter
40202982
Circumference
126301392.9036
Area
1.2694231563696E+15
Volume
3.4023064203941E+22
Surface area
5.0776926254785E+15
Circumference
126301392.9036
Perimeter
80405964
Area
404069940423081
Diagonal
28427801.196121
Surface area
2424419642538486
Volume
8.1224082707851E+21
Space diagonal
34816803.719889
Perimeter
60304473
Area
1.7496741665603E+14
Altitude
17408401.859944
Surface area
1.7496741665603E+14
Volume
9.5723499463964E+20
Height
9475933.7320402