20021665 is an odd 8-digits composite number following 20021664
and preceding 20021666 . In scientific notation, it is written as 2.0021665 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 14929920 positive integers (up to 20021665) that are relatively prime to 20021665.
20021665 has 16 divisors, whose sum is 25684560
The reverse of 20021665 is 56612002
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million twenty-one thousand six hundred sixty-five
Scientific notation
2.0021665 × 10^7
Engineering notation
2.0021665 × 10^6
Prime Factorization
17 × 5 × 109 × 2161
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20021665
Product of the distinct prime numbers
The prime factorization of 20021665 is 17 × 5 × 109 × 2161.
Since it has a total of 4 prime factors.
6 , 9 , 47 , 6 , 689 , 971 , 1201 , 8250 , 25300 , 41034 , 324733 , 836290 , 8590835 , 4824738 , 66635661 , 52364890 , 266969421 , 87363882 , 7764232865 , 3131669135
n×2
40043330
n×3
60064995
n×4
80086660
n×5
100108325
n÷2
10010832.5
n÷3
6673888.3333333
n÷3
5005416.25
n÷5
4004333
n2
400867069372225
n3
8.0260261725024E+21
n4
1.6069440730708E+29
n5
3.2173695904758E+36
2 √n
4474.5575200236
3 √n
271.53973938598
4 √n
66.892133468919
5 √n
28.860246629943
1 , 5 , 17 , 85 , 109 , 545 , 1853 , 2161 , 9265 , 10805 , 36737 , 183685 , 235549 , 1177745 , 4004333 , 20021665
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20021664
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021665 can be divided by 16 positive divisors.
The sum of these divisors (counting 20021665) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100011000000110100001
3
Ternary
1101200012120011
4
Quaternary
1030120012201
5
Quinary
20111143130
6
Senary
1553044521
8
Octal
114300641
10
Decimal
20021665
12
Duodecimal
6856741
16
Hexadecimal
13181a1
20
Vigesimal
652e35
36
Base36
bx4td
md5
f712a8d48c700284d9af25e233684870
sha1
38fbe8a46f770951284d29656f128b8c13236965
sha256
638dd05a8fa88faaa044bf378afc80c143f0e0ffcf12a4b5eb4612259f369587
sha512
cbfe79289929a39b4920b8b20593a67fee979f100c6a75a00932dcfa2f687e8d502979e3d97ea074d54edb953f1c96f17b30cdffda2cfad3b107bc705bd35fbc
ripemd-160
15bbfb96c69b1e851d80bc912c14ce2d3215d4a1
Diameter
40043330
Circumference
125799831.35327
Area
1.2593610402059E+15
Volume
3.3619339814737E+22
Surface area
5.0374441608234E+15
Circumference
125799831.35327
Perimeter
80086660
Area
400867069372225
Diagonal
28314910.184291
Surface area
2405202416233350
Volume
8.0260261725024E+21
Space diagonal
34678541.032124
Perimeter
60064995
Area
1.7358053280848E+14
Altitude
17339270.516062
Surface area
1.7358053280848E+14
Volume
9.458762554262E+20
Height
9438303.3947636