20215921 is an odd 8-digits composite number following 20215920
and preceding 20215922 . In scientific notation, it is written as 2.0215921 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 18342240 positive integers (up to 20215921) that are relatively prime to 20215921.
20215921 has 8 divisors, whose sum is 22096800
The reverse of 20215921 is 12951202
Previous prime number is 619
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million two hundred fifteen thousand nine hundred twenty-one
Scientific notation
2.0215921 × 10^7
Engineering notation
2.0215921 × 10^6
Prime Factorization
11 × 619 × 2969
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20215921
Product of the distinct prime numbers
The prime factorization of 20215921 is 11 × 619 × 2969.
Since it has a total of 3 prime factors.
4 , 7 , 70 , 63 , 362 , 366 , 7295 , 1864 , 2663 , 36971 , 716639 , 160923 , 9594522 , 5140346 , 86676487 , 98106860 , 349076705 , 367743025 , 6402505648 , 1289588118
n×2
40431842
n×3
60647763
n×4
80863684
n×5
101079605
n÷2
10107960.5
n÷3
6738640.3333333
n÷3
5053980.25
n÷5
4043184.2
n2
408683461878241
n3
8.261912579337E+21
n4
1.6702217201278E+29
n5
3.3765070346588E+36
2 √n
4496.2118499911
3 √n
272.41510022431
4 √n
67.053798177218
5 √n
28.916032643617
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20215920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20215921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20215921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000111100001110001
3
Ternary
1102001002000211
4
Quaternary
1031013201301
5
Quinary
20133402141
6
Senary
2001144121
8
Octal
115074161
10
Decimal
20215921
12
Duodecimal
692b041
16
Hexadecimal
1347871
20
Vigesimal
666jg1
36
Base36
c1apd
md5
26fac315350c964588bc5a2eb656b8dc
sha1
f563f7825967fe58b8df93e3cf14fcf996ea73aa
sha256
726aef6540bd2171af3ca5a8035a0ffe4544d38f19029a50ce87557ba598dc58
sha512
c023091e96028d198c1b98d9c35c057e61b55e4d1cdb7e337a5fffad3c92afa1498259a7f0204417e9e4eb9839c3175faccfefc9d303f74de810611e91980a18
ripemd-160
2cfaaa59f77e6876ea66639464068597460ca6c8
Diameter
40431842
Circumference
127020377.7983
Area
1.2839169614803E+15
Volume
3.4607418485128E+22
Surface area
5.1356678459213E+15
Circumference
127020377.7983
Perimeter
80863684
Area
408683461878241
Diagonal
28589629.654063
Surface area
2452100771269446
Volume
8.261912579337E+21
Space diagonal
35015002.293799
Perimeter
60647763
Area
1.7696513004656E+14
Altitude
17507501.146899
Surface area
1.7696513004656E+14
Volume
9.7367573506994E+20
Height
9529876.5513544