20213721 is an odd 8-digits composite number following 20213720
and preceding 20213722 . In scientific notation, it is written as 2.0213721 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 12175200 positive integers (up to 20213721) that are relatively prime to 20213721.
20213721 has 16 divisors, whose sum is 24652800
The reverse of 20213721 is 12731202
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred thirteen thousand seven hundred twenty-one
Scientific notation
2.0213721 × 10^7
Engineering notation
2.0213721 × 10^6
Prime Factorization
9 × 11 × 191 × 1069
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20213721
Product of the distinct prime numbers
The prime factorization of 20213721 is 9 × 11 × 191 × 1069.
Since it has a total of 4 prime factors.
8 , 4 , 88 , 79 , 237 , 270 , 9113 , 7309 , 37908 , 64853 , 647966 , 198116 , 2740066 , 620895 , 21457495 , 82076593 , 364267648 , 963042616 , 7270341140 , 7159789274
n×2
40427442
n×3
60641163
n×4
80854884
n×5
101068605
n÷2
10106860.5
n÷3
6737907
n÷3
5053430.25
n÷5
4042744.2
n2
408594516665841
n3
8.2592155620132E+21
n4
1.6694947904939E+29
n5
3.3746701905998E+36
2 √n
4495.9671929408
3 √n
272.4052179973
4 √n
67.051973818381
5 √n
28.915403258083
1 , 9 , 11 , 99 , 191 , 1069 , 1719 , 2101 , 9621 , 11759 , 18909 , 105831 , 204179 , 1837611 , 2245969 , 20213721
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
-20213720
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 20213721 can be divided by 16 positive divisors.
The sum of these divisors (counting 20213721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110111111011001
3
Ternary
1102000222000100
4
Quaternary
1031012333121
5
Quinary
20133314341
6
Senary
2001130013
8
Octal
115067731
10
Decimal
20213721
12
Duodecimal
6929909
16
Hexadecimal
1346fd9
20
Vigesimal
666e61
36
Base36
c1909
md5
ae4ced038fb32136af749322d693b2fd
sha1
7ac05813040b4c93fdfae3627f6375bab5bf7f41
sha256
b2701400f457b8edd4d177150507da1ec932147d989d8db10253c8f5c53019eb
sha512
5d73a819c0e14cfc3a421d4bd526a75d449453e4018c370f42483d60183f7e4b6f350ce558dc692eee2ec08ca9a191b8bf5a7061c501eaf3d381c76642e91c64
ripemd-160
618d85306c9df26c5f7b452010ae9af9f6049eed
Diameter
40427442
Circumference
127006554.79063
Area
1.2836375318545E+15
Volume
3.459612124538E+22
Surface area
5.1345501274179E+15
Circumference
127006554.79063
Perimeter
80854884
Area
408594516665841
Diagonal
28586518.384226
Surface area
2451567099995046
Volume
8.2592155620132E+21
Space diagonal
35011191.782022
Perimeter
60641163
Area
1.7692661563982E+14
Altitude
17505595.891011
Surface area
1.7692661563982E+14
Volume
9.7335788853016E+20
Height
9528839.4614086