20172721 is an odd 8-digits composite number following 20172720
and preceding 20172722 . In scientific notation, it is written as 2.0172721 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20163700 positive integers (up to 20172721) that are relatively prime to 20172721.
20172721 has 4 divisors, whose sum is 20181744
The reverse of 20172721 is 12727102
Previous prime number is 4091
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred seventy-two thousand seven hundred twenty-one
Scientific notation
2.0172721 × 10^7
Engineering notation
2.0172721 × 10^6
Prime Factorization
4091 × 4931
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20172721
Product of the distinct prime numbers
The prime factorization of 20172721 is 4091 × 4931.
Since it has a total of 2 prime factors.
7 , 2 , 44 , 26 , 253 , 403 , 3050 , 9405 , 12140 , 29219 , 342830 , 270595 , 9087127 , 2826566 , 52476131 , 94417277 , 276068574 , 6839419 , 7336984590 , 9231677055
n×2
40345442
n×3
60518163
n×4
80690884
n×5
100863605
n÷2
10086360.5
n÷3
6724240.3333333
n÷3
5043180.25
n÷5
4034544.2
n2
406938672543841
n3
8.2090603053373E+21
n4
1.6559908321174E+29
n5
3.3405841034863E+36
2 √n
4491.4052366715
3 √n
272.22091787673
4 √n
67.017947123673
5 √n
28.903663761301
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
-20172720
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 20172721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20172721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111100111110110001
3
Ternary
1101221212202211
4
Quaternary
1030330332301
5
Quinary
20131011341
6
Senary
2000212121
8
Octal
114747661
10
Decimal
20172721
12
Duodecimal
690a041
16
Hexadecimal
133cfb1
20
Vigesimal
661bg1
36
Base36
c0ddd
md5
f8fdf6ef9364807df005d162c5d4c11d
sha1
c61c51e3b75f8efef0b91a9ad9c27cea30325b14
sha256
4ff24a8341084111eb4f5f00e985487edc0be641ea8761deacf2e51e5dfbc1c5
sha512
5eec2e81352b5483bdaeba662a91e86ca9debdb605b698c056640712e9cfb091314c054e7791b8b964c55b65dac93d7b372c39bb0bfee478c71647e7d8125f7c
ripemd-160
017907ea18ad5149dd0fd251043d64d2be909c20
Diameter
40345442
Circumference
126748944.19303
Area
1.2784355441253E+15
Volume
3.4386031397498E+22
Surface area
5.1137421765013E+15
Circumference
126748944.19303
Perimeter
80690884
Area
406938672543841
Diagonal
28528535.628169
Surface area
2441632035263046
Volume
8.2090603053373E+21
Space diagonal
34940177.698912
Perimeter
60518163
Area
1.7620961410264E+14
Altitude
17470088.849456
Surface area
1.7620961410264E+14
Volume
9.6744703484555E+20
Height
9509511.8760562