20393989 is an odd 8-digits composite number following 20393988
and preceding 20393990 . In scientific notation, it is written as 2.0393989 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 15341760 positive integers (up to 20393989) that are relatively prime to 20393989.
20393989 has 8 divisors, whose sum is 22360032
The reverse of 20393989 is 98939302
Previous prime number is 203
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million three hundred ninety-three thousand nine hundred eighty-nine
Scientific notation
2.0393989 × 10^7
Engineering notation
2.0393989 × 10^6
Prime Factorization
9133 × 203 × 11
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20393989
Product of the distinct prime numbers
The prime factorization of 20393989 is 9133 × 203 × 11.
Since it has a total of 3 prime factors.
7 , 7 , 76 , 20 , 932 , 847 , 5216 , 5738 , 95749 , 92121 , 611669 , 589119 , 2633888 , 7618800 , 35966226 , 7317747 , 205592897 , 513383024 , 5940150389 , 3574492349
n×2
40787978
n×3
61181967
n×4
81575956
n×5
101969945
n÷2
10196994.5
n÷3
6797996.3333333
n÷3
5098497.25
n÷5
4078797.8
n2
415914787332121
n3
8.4821615977886E+21
n4
1.7298511032152E+29
n5
3.5278564370609E+36
2 √n
4515.9704383443
3 √n
273.21260168087
4 √n
67.200970516387
5 √n
28.966794355002
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
-20393988
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 20393989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20393989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110011000000000101
3
Ternary
1102101010021221
4
Quaternary
1031303000011
5
Quinary
20210101424
6
Senary
2005040341
8
Octal
115630005
10
Decimal
20393989
12
Duodecimal
69b60b1
16
Hexadecimal
1373005
20
Vigesimal
6794j9
36
Base36
c543p
md5
615f9225211b3534b142965954e89873
sha1
914176b19dc9505e441a902ea1873496acdb66df
sha256
ccba281223454df7d3f23f9ded7abe1bc91daf937db1c326a8579aff72b5fddf
sha512
1e08f197759fa7023e0d3f273289df2be77fd59e3e322276433ae4a4355f69ee5d8d0c5c5195a8263de519b977afac8f97a703ed3a521a196839f7fc5f561246
ripemd-160
46db275b147545aa85bd82fd695fa5c61c9dc0d3
Diameter
40787978
Circumference
128139212.03958
Area
1.306634840402E+15
Volume
3.5529995416232E+22
Surface area
5.2265393616078E+15
Circumference
128139212.03958
Perimeter
81575956
Area
415914787332121
Diagonal
28841455.834688
Surface area
2495488723992726
Volume
8.4821615977886E+21
Space diagonal
35323425.117001
Perimeter
61181967
Area
1.8009638581961E+14
Altitude
17661712.5585
Surface area
1.8009638581961E+14
Volume
9.9963233081941E+20
Height
9613818.6115626