20164721 is an odd 8-digits composite number following 20164720
and preceding 20164722 . In scientific notation, it is written as 2.0164721 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 18838512 positive integers (up to 20164721) that are relatively prime to 20164721.
20164721 has 8 divisors, whose sum is 21531840
The reverse of 20164721 is 12746102
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred sixty-four thousand seven hundred twenty-one
Scientific notation
2.0164721 × 10^7
Engineering notation
2.0164721 × 10^6
Prime Factorization
23 × 43 × 20389
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20164721
Product of the distinct prime numbers
The prime factorization of 20164721 is 23 × 43 × 20389.
Since it has a total of 3 prime factors.
1 , 9 , 77 , 100 , 944 , 456 , 6305 , 9366 , 38559 , 57342 , 409270 , 789255 , 8302122 , 194931 , 8581645 , 86705331 , 442561136 , 311714744 , 5622093846 , 5046932698
n×2
40329442
n×3
60494163
n×4
80658884
n×5
100823605
n÷2
10082360.5
n÷3
6721573.6666667
n÷3
5041180.25
n÷5
4032944.2
n2
406615973007841
n3
8.1992976498466E+21
n4
1.6533654950511E+29
n5
3.3339653918733E+36
2 √n
4490.5145584888
3 √n
272.18492776763
4 √n
67.011301722089
5 √n
28.901370902556
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
-20164720
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 20164721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20164721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111011000001110001
3
Ternary
1101221110210112
4
Quaternary
1030323001301
5
Quinary
20130232341
6
Senary
2000111105
8
Octal
114730161
10
Decimal
20164721
12
Duodecimal
6905495
16
Hexadecimal
133b071
20
Vigesimal
660bg1
36
Base36
c0775
md5
6dd7c8e50ba19168babdd41106c0efdb
sha1
ab514d8ba5541bea9880a997a1209329ce174115
sha256
69f0f688604f06c9bd022897bb3881da12d1651ce8470cdf9d8ce939cb24b7cc
sha512
1e712d188bb17ccea749b2d5440dd504d87bc12c58b7f432e6b9bb9c36bfa95216a8ef77bd80e58ee938ae3cbd2e683cee4b3444b54768276edcd48a6165662e
ripemd-160
257e505345a0c4dfbcf4948bb136c242e90eaa98
Diameter
40329442
Circumference
126698678.71058
Area
1.2774217536337E+15
Volume
3.4345137681806E+22
Surface area
5.1096870145348E+15
Circumference
126698678.71058
Perimeter
80658884
Area
406615973007841
Diagonal
28517221.91967
Surface area
2439695838047046
Volume
8.1992976498466E+21
Space diagonal
34926321.292451
Perimeter
60494163
Area
1.7606988110466E+14
Altitude
17463160.646226
Surface area
1.7606988110466E+14
Volume
9.6629649486225E+20
Height
9505740.6398899