20212721 is an odd 8-digits prime number following 20212720
and preceding 20212722 . In scientific notation, it is written as 2.0212721 × 10^7.
The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors.
There are 20212720 positive integers (up to 20212721) that are relatively prime to 20212721.
20212721 has 2 divisors, whose sum is 20212722
The reverse of 20212721 is 12721202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million two hundred twelve thousand seven hundred twenty-one
Scientific notation
2.0212721 × 10^7
Engineering notation
2.0212721 × 10^6
Prime Factorization
20212721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20212721
Product of the distinct prime numbers
The prime factorization of 20212721 is 20212721.
Since it has a total of 1 prime factors.
5 , 5 , 46 , 6 , 275 , 358 , 5641 , 5814 , 5637 , 28791 , 669845 , 953616 , 9067688 , 8782941 , 20414945 , 10027066 , 328333572 , 212094030 , 9914114372 , 121236784
n×2
40425442
n×3
60638163
n×4
80850884
n×5
101063605
n÷2
10106360.5
n÷3
6737573.6666667
n÷3
5053180.25
n÷5
4042544.2
n2
408554090223841
n3
8.2579898391033E+21
n4
1.6691644463863E+29
n5
3.3738355257926E+36
2 √n
4495.8559807894
3 √n
272.40072583889
4 √n
67.051144515134
5 √n
28.915117155634
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20212722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10106361
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4495.8560920029
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999010524
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20212721 can be divided by 2 positive divisors.
The sum of these divisors (counting 20212721) is 20212722, the average is 10106361.
Base
System
Value
2
Binary
1001101000110101111110001
3
Ternary
1102000220122022
4
Quaternary
1031012233301
5
Quinary
20133301341
6
Senary
2001121225
8
Octal
115065761
10
Decimal
20212721
12
Duodecimal
6929215
16
Hexadecimal
1346bf1
20
Vigesimal
666bg1
36
Base36
c188h
md5
8af03d22d0155b3f1b1e5ba872d195fb
sha1
4cf9557a670cc1224892ef390081b356197f3d64
sha256
be13af1d5a8a8cdbba80af4d256888ae1b01a4f40e6ac329f910ebb692c29dac
sha512
90f207deacd3273a5ac3bd61c521bad220b992a9b6ef703970136da44400650ae2d8b86a07200aa00571182ccc3b976b3f252ec9c5bfdcf419f28e53e0a5198f
ripemd-160
02f7476108768dda17fb785a12ced62b0a428fbc
Diameter
40425442
Circumference
127000271.60532
Area
1.2835105284413E+15
Volume
3.4590986949262E+22
Surface area
5.1340421137651E+15
Circumference
127000271.60532
Perimeter
80850884
Area
408554090223841
Diagonal
28585104.170663
Surface area
2451324541343046
Volume
8.2579898391033E+21
Space diagonal
35009459.731214
Perimeter
60638163
Area
1.7690911047694E+14
Altitude
17504729.865607
Surface area
1.7690911047694E+14
Volume
9.7321343569993E+20
Height
9528368.0568878