20021661 is an odd 8-digits composite number following 20021660
and preceding 20021662 . In scientific notation, it is written as 2.0021661 × 10^7.
The sum of its digits is 18. It has a total of 6 prime factors and 20 positive divisors.
There are 11594880 positive integers (up to 20021661) that are relatively prime to 20021661.
20021661 has 20 divisors, whose sum is 30057852
The reverse of 20021661 is 16612002
Previous prime number is 253
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million twenty-one thousand six hundred sixty-one
Scientific notation
2.0021661 × 10^7
Engineering notation
2.0021661 × 10^6
Prime Factorization
3 × 3 × 3 × 3 × 253 × 977
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
741543
Product of the distinct prime numbers
The prime factorization of 20021661 is 3 × 3 × 3 × 3 × 253 × 977.
Since it has a total of 6 prime factors.
8 , 10 , 90 , 8 , 119 , 698 , 6619 , 3681 , 7186 , 43104 , 743635 , 823493 , 4576222 , 6930336 , 60916011 , 13641333 , 710963265 , 785236203 , 5880846335 , 2369006415
n×2
40043322
n×3
60064983
n×4
80086644
n×5
100108305
n÷2
10010830.5
n÷3
6673887
n÷3
5005415.25
n÷5
4004332.2
n2
400866909198921
n3
8.0260213620986E+21
n4
1.606942788907E+29
n5
3.217366376589E+36
2 √n
4474.557073052
3 √n
271.53972130292
4 √n
66.892130127931
5 √n
28.860245476782
1 , 3 , 9 , 27 , 81 , 253 , 759 , 977 , 2277 , 2931 , 6831 , 8793 , 20493 , 26379 , 79137 , 247181 , 741543 , 2224629 , 6673887 , 20021661
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20021660
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021661 can be divided by 20 positive divisors.
The sum of these divisors (counting 20021661) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001100011000000110011101
3
Ternary
1101200012120000
4
Quaternary
1030120012131
5
Quinary
20111143121
6
Senary
1553044513
8
Octal
114300635
10
Decimal
20021661
12
Duodecimal
6856739
16
Hexadecimal
131819d
20
Vigesimal
652e31
36
Base36
bx4t9
md5
6529abb3a2abc587fe0c2bfbd613fb70
sha1
a6cbe8745fba756a29589e3fc4e92a83b9b7c16c
sha256
09ea4e43a1784a45a6aaae33b94a5d10d3802f20aa0fdbec9db47eab89a521a1
sha512
e93c2c4ba518d10f59b398c7244821bf8dddfc8164062a4ea4ef543ad9ef1e129de029d934063c92d918c5f08d367eecaf7e71ab0daca4fc58d9e1cf7e732ef2
ripemd-160
ce57d8a1de35fe5b5acdea96706104cc84a36a8e
Diameter
40043322
Circumference
125799806.22053
Area
1.2593605370066E+15
Volume
3.3619319664965E+22
Surface area
5.0374421480263E+15
Circumference
125799806.22053
Perimeter
80086644
Area
400866909198921
Diagonal
28314904.527436
Surface area
2405201455193526
Volume
8.0260213620986E+21
Space diagonal
34678534.10392
Perimeter
60064983
Area
1.7358046345141E+14
Altitude
17339267.05196
Surface area
1.7358046345141E+14
Volume
9.4587568851467E+20
Height
9438301.5091455