20020721 is an odd 8-digits composite number following 20020720
and preceding 20020722 . In scientific notation, it is written as 2.0020721 × 10^7.
The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors.
There are 17160612 positive integers (up to 20020721) that are relatively prime to 20020721.
20020721 has 4 divisors, whose sum is 22880832
The reverse of 20020721 is 12702002
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million twenty thousand seven hundred twenty-one
Scientific notation
2.0020721 × 10^7
Engineering notation
2.0020721 × 10^6
Prime Factorization
7 × 2860103
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20020721
Product of the distinct prime numbers
The prime factorization of 20020721 is 7 × 2860103.
Since it has a total of 2 prime factors.
7 , 9 , 58 , 49 , 875 , 852 , 6812 , 4748 , 56663 , 12669 , 180445 , 845600 , 1128703 , 9602060 , 51395735 , 71300906 , 744732198 , 631295525 , 5539450139 , 5266500542
n×2
40041442
n×3
60062163
n×4
80082884
n×5
100103605
n÷2
10010360.5
n÷3
6673573.6666667
n÷3
5005180.25
n÷5
4004144.2
n2
400829269359841
n3
8.0248909704872E+21
n4
1.6066410317554E+29
n5
3.2166111843928E+36
2 √n
4474.4520334897
3 √n
271.53547171656
4 √n
66.891344981916
5 √n
28.859974478884
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
-20020720
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 20020721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20020721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010111110111110001
3
Ternary
1101200011021012
4
Quaternary
1030113313301
5
Quinary
20111130341
6
Senary
1553040305
8
Octal
114276761
10
Decimal
20020721
12
Duodecimal
6856095
16
Hexadecimal
1317df1
20
Vigesimal
652bg1
36
Base36
bx435
md5
6021634810bbc8d14f60ce446cd315fd
sha1
a37e156da2279b847014fe6bc080baa549e42783
sha256
b991f08a94fc60b955761345a3dd92c5918106e702cc6b57463b4c0da582ff20
sha512
22c516542cd67a3a0f7dfafda4be92c05d968a89284cad4cb41113630b0dfef5f85b1b155fc2fbd663b2dab1617a79dee40c5ed34d3ba69581f8c864fcacbd13
ripemd-160
8bd866ccf8e27bf7d857d2f2b12b5ac8051ca118
Diameter
40041442
Circumference
125793900.02634
Area
1.2592422879646E+15
Volume
3.3614584691656E+22
Surface area
5.0369691518586E+15
Circumference
125793900.02634
Perimeter
80082884
Area
400829269359841
Diagonal
28313575.166688
Surface area
2404975616159046
Volume
8.0248909704872E+21
Space diagonal
34676905.976161
Perimeter
60062163
Area
1.7356416492299E+14
Altitude
17338452.988081
Surface area
1.7356416492299E+14
Volume
9.457424705857E+20
Height
9437858.3888959