20989843 is an odd 8-digits composite number following 20989842
and preceding 20989844 . In scientific notation, it is written as 2.0989843 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 17991288 positive integers (up to 20989843) that are relatively prime to 20989843.
20989843 has 4 divisors, whose sum is 23988400
The reverse of 20989843 is 34898902
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million nine hundred eighty-nine thousand eight hundred forty-three
Scientific notation
2.0989843 × 10^7
Engineering notation
2.0989843 × 10^6
Prime Factorization
7 × 2998549
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20989843
Product of the distinct prime numbers
The prime factorization of 20989843 is 7 × 2998549.
Since it has a total of 2 prime factors.
3 , 2 , 26 , 79 , 36 , 907 , 9986 , 6693 , 88253 , 99603 , 175174 , 412924 , 4933466 , 4904711 , 15818189 , 13193897 , 726419589 , 779700200 , 3510659937 , 8577110220
n×2
41979686
n×3
62969529
n×4
83959372
n×5
104949215
n÷2
10494921.5
n÷3
6996614.3333333
n÷3
5247460.75
n÷5
4197968.6
n2
440573509164649
n3
9.247568787325E+21
n4
1.9410501697765E+29
n5
4.0742338318733E+36
2 √n
4581.4673413656
3 √n
275.84793047636
4 √n
67.686537371664
5 √n
29.13411552751
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
-20989842
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 20989843 can be divided by 4 positive divisors.
The sum of these divisors (counting 20989843) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100011110010011
3
Ternary
1110111101122121
4
Quaternary
1100010132103
5
Quinary
20333133333
6
Senary
2025515111
8
Octal
120043623
10
Decimal
20989843
12
Duodecimal
7042a97
16
Hexadecimal
1404793
20
Vigesimal
6b3ec3
36
Base36
chvv7
md5
f0b984c2bcf1cf756224184b94a1631a
sha1
aaaf676c3b721018e8a1914dd10122162cb67f68
sha256
24b48659c4e13fa07757618e7805fd6f7085242dabb0ad60ffed2b91a487383b
sha512
70234a4ed9367e50e910ced0b2e5992193524bceda2075ecdd96a33533387835a35cce9163d85df3eb01e4069ff3fb9646ce2255c8d29b05ecdd0752459d02a3
ripemd-160
95ddb05649aa3c2f0e5e596f434afe9a2f0c7405
Diameter
41979686
Circumference
131883073.13761
Area
1.3841024997579E+15
Volume
3.8736125554436E+22
Surface area
5.5364099990317E+15
Circumference
131883073.13761
Perimeter
83959372
Area
440573509164649
Diagonal
29684120.642682
Surface area
2643441054987894
Volume
9.247568787325E+21
Space diagonal
36355474.518894
Perimeter
62969529
Area
1.9077392558552E+14
Altitude
18177737.259447
Surface area
1.9077392558552E+14
Volume
1.0898364331678E+21
Height
9894706.880894