20442721 is an odd 8-digits composite number following 20442720
and preceding 20442722 . In scientific notation, it is written as 2.0442721 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 17639424 positive integers (up to 20442721) that are relatively prime to 20442721.
20442721 has 16 divisors, whose sum is 23469264
The reverse of 20442721 is 12724402
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million four hundred forty-two thousand seven hundred twenty-one
Scientific notation
2.0442721 × 10^7
Engineering notation
2.0442721 × 10^6
Prime Factorization
17 × 13 × 233 × 397
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20442721
Product of the distinct prime numbers
The prime factorization of 20442721 is 17 × 13 × 233 × 397.
Since it has a total of 4 prime factors.
2 , 2 , 72 , 56 , 332 , 363 , 9329 , 7814 , 14623 , 21062 , 660622 , 808169 , 3377212 , 3354343 , 96782620 , 11352237 , 43575477 , 25980001 , 7001610461 , 1348227807
n×2
40885442
n×3
61328163
n×4
81770884
n×5
102213605
n÷2
10221360.5
n÷3
6814240.3333333
n÷3
5110680.25
n÷5
4088544.2
n2
417904841883841
n3
8.5431120871805E+21
n4
1.7464445686996E+29
n5
3.5702079059891E+36
2 √n
4521.3627370517
3 √n
273.43004492981
4 √n
67.241079237708
5 √n
28.98062453331
1 , 13 , 17 , 221 , 233 , 397 , 3029 , 3961 , 5161 , 6749 , 51493 , 87737 , 92501 , 1202513 , 1572517 , 20442721
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
-20442720
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 20442721 can be divided by 16 positive divisors.
The sum of these divisors (counting 20442721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101111110111001100001
3
Ternary
1102110121010211
4
Quaternary
1031332321201
5
Quinary
20213131341
6
Senary
2010054121
8
Octal
115767141
10
Decimal
20442721
12
Duodecimal
6a1a341
16
Hexadecimal
137ee61
20
Vigesimal
67f6g1
36
Base36
c65pd
md5
8c4b6514c9b23a72e8a046bf35ac2afc
sha1
fd91747b3f50a40c30125520bde5f3f41b30ffda
sha256
a4ec2f83d858bdc086c46065f1b9a5591f424b6325c3c8d4ae75cfd0acaf1956
sha512
7068901f2b7c099f5c63c9bb12b2f245e95a02dff9b875ba3c6c0d5eddb9d154c75a21b1a9413f9ed248a567e1745e38f6783a3d267c2c172c04bb764fd93b93
ripemd-160
7c82cc3f666e23c1e4beaa2f1ae1b0f22a2f8052
Diameter
40885442
Circumference
128445404.22597
Area
1.3128867811619E+15
Volume
3.5785304229174E+22
Surface area
5.2515471246475E+15
Circumference
128445404.22597
Perimeter
81770884
Area
417904841883841
Diagonal
28910373.290009
Surface area
2507429051303046
Volume
8.5431120871805E+21
Space diagonal
35407831.416955
Perimeter
61328163
Area
1.8095810471796E+14
Altitude
17703915.708478
Surface area
1.8095810471796E+14
Volume
1.0068154148803E+21
Height
9636791.0966698