20442989 is an odd 8-digits composite number following 20442988
and preceding 20442990 . In scientific notation, it is written as 2.0442989 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 17522556 positive integers (up to 20442989) that are relatively prime to 20442989.
20442989 has 4 divisors, whose sum is 23363424
The reverse of 20442989 is 98924402
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million four hundred forty-two thousand nine hundred eighty-nine
Scientific notation
2.0442989 × 10^7
Engineering notation
2.0442989 × 10^6
Prime Factorization
7 × 2920427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20442989
Product of the distinct prime numbers
The prime factorization of 20442989 is 7 × 2920427.
Since it has a total of 2 prime factors.
8 , 7 , 15 , 43 , 400 , 648 , 6832 , 9995 , 94570 , 61486 , 437877 , 118162 , 5939148 , 8048023 , 70161232 , 16989309 , 521922489 , 934316344 , 7319694553 , 8078527757
n×2
40885978
n×3
61328967
n×4
81771956
n×5
102214945
n÷2
10221494.5
n÷3
6814329.6666667
n÷3
5110747.25
n÷5
4088597.8
n2
417915799254121
n3
8.5434480870782E+21
n4
1.7465361526621E+29
n5
3.5704419356974E+36
2 √n
4521.392374037
3 √n
273.43123979572
4 √n
67.241299615913
5 √n
28.980700518955
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
-20442988
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 20442989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20442989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111110111101101101
3
Ternary
1102110121111202
4
Quaternary
1031332331231
5
Quinary
20213133424
6
Senary
2010055245
8
Octal
115767555
10
Decimal
20442989
12
Duodecimal
6a1a525
16
Hexadecimal
137ef6d
20
Vigesimal
67f799
36
Base36
c65wt
md5
578e6d65964b6de8e368473d524780e5
sha1
7d87575edeae40781dbe36817ded0d68a62c9604
sha256
4fea9a21f2a159372d9ea0d526844de73745298514e2f53c60764486cac6eb54
sha512
2ccd100847508e3130f24116d5634ec9cafc4acc41d79493255a803be6ba1056464f518c76f089b014b9d6762cd26244890cbe00805be4bc6cfc78aa3bdbafa5
ripemd-160
fecd767a00a910aa8cceecfa0832f94989403116
Diameter
40885978
Circumference
128447088.11963
Area
1.3129212047559E+15
Volume
3.5786711662254E+22
Surface area
5.2516848190234E+15
Circumference
128447088.11963
Perimeter
81771956
Area
417915799254121
Diagonal
28910752.299244
Surface area
2507494795524726
Volume
8.5434480870782E+21
Space diagonal
35408295.606572
Perimeter
61328967
Area
1.8096284939847E+14
Altitude
17704147.803286
Surface area
1.8096284939847E+14
Volume
1.006855012848E+21
Height
9636917.4330813