20943989 is an odd 8-digits composite number following 20943988
and preceding 20943990 . In scientific notation, it is written as 2.0943989 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 18575200 positive integers (up to 20943989) that are relatively prime to 20943989.
20943989 has 8 divisors, whose sum is 23405760
The reverse of 20943989 is 98934902
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million nine hundred forty-three thousand nine hundred eighty-nine
Scientific notation
2.0943989 × 10^7
Engineering notation
2.0943989 × 10^6
Prime Factorization
11 × 41 × 46439
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20943989
Product of the distinct prime numbers
The prime factorization of 20943989 is 11 × 41 × 46439.
Since it has a total of 3 prime factors.
2 , 8 , 13 , 95 , 539 , 222 , 1103 , 8806 , 12482 , 16776 , 208526 , 968097 , 8601879 , 7596363 , 56928631 , 55917891 , 974214765 , 270749582 , 5597614532 , 2299064236
n×2
41887978
n×3
62831967
n×4
83775956
n×5
104719945
n÷2
10471994.5
n÷3
6981329.6666667
n÷3
5235997.25
n÷5
4188797.8
n2
438650675232121
n3
9.1870949169041E+21
n4
1.924144148816E+29
n5
4.0299253887216E+36
2 √n
4576.4603133863
3 √n
275.64691336342
4 √n
67.649540378234
5 √n
29.121375226098
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
-20943988
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 20943989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20943989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111111001010001110101
3
Ternary
1110102001202022
4
Quaternary
1033321101311
5
Quinary
20330201424
6
Senary
2024522525
8
Octal
117712165
10
Decimal
20943989
12
Duodecimal
7020445
16
Hexadecimal
13f9475
20
Vigesimal
6ahjj9
36
Base36
cgwhh
md5
86d32957791452a8ae8738b04f8108f1
sha1
5c39b4bd0bda1c062012118e387f51c5bf643590
sha256
0c7a65cc5d03d998cfcfde6bb7f3253224bfb20e71ab7b35d7ede9232daf5e3f
sha512
1b542ae9986f037ff76c8ac75184898fc27ee0e8a5d895bc70086392951aeaa56409cd668ae7247a86c1ff035d2b99dd68559597b3fc795b71ee1ae7d39e03ab
ripemd-160
e16e74ecb99f7450b3c82c9714c467a7e61ce484
Diameter
41887978
Circumference
131594963.95853
Area
1.3780617388014E+15
Volume
3.8482813198371E+22
Surface area
5.5122469552057E+15
Circumference
131594963.95853
Perimeter
83775956
Area
438650675232121
Diagonal
29619273.293993
Surface area
2631904051392726
Volume
9.1870949169041E+21
Space diagonal
36276053.061164
Perimeter
62831967
Area
1.8994131406911E+14
Altitude
18138026.530582
Surface area
1.8994131406911E+14
Volume
1.0827095191912E+21
Height
9873091.0979976