20389618 is an even 8-digits composite number following 20389617
and preceding 20389619 . In scientific notation, it is written as 2.0389618 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 10185216 positive integers (up to 20389618) that are relatively prime to 20389618.
20389618 has 8 divisors, whose sum is 30613212
The reverse of 20389618 is 81698302
Previous prime number is 1217
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million three hundred eighty-nine thousand six hundred eighteen
Scientific notation
2.0389618 × 10^7
Engineering notation
2.0389618 × 10^6
Prime Factorization
2 × 1217 × 8377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20389618
Product of the distinct prime numbers
The prime factorization of 20389618 is 2 × 1217 × 8377.
Since it has a total of 3 prime factors.
5 , 7 , 80 , 53 , 434 , 4 , 9021 , 8889 , 81027 , 76132 , 715853 , 999628 , 7738777 , 167588 , 46487794 , 53960266 , 737459350 , 834278358 , 1559846281 , 8285853207
n×2
40779236
n×3
61168854
n×4
81558472
n×5
101948090
n÷2
10194809
n÷3
6796539.3333333
n÷3
5097404.5
n÷5
4077923.6
n2
415736522185924
n3
8.4767088760195E+21
n4
1.7283685587925E+29
n5
3.5240774676989E+36
2 √n
4515.4864632728
3 √n
273.19308126222
4 √n
67.197369466913
5 √n
28.965552570334
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
-20389617
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 20389618 can be divided by 8 positive divisors.
The sum of these divisors (counting 20389618) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110001111011110010
3
Ternary
1102100220022001
4
Quaternary
1031301323302
5
Quinary
20204431433
6
Senary
2005004214
8
Octal
115617362
10
Decimal
20389618
12
Duodecimal
69b366a
16
Hexadecimal
1371ef2
20
Vigesimal
678e0i
36
Base36
c50qa
md5
0fa00de7639fa92b2803864231d16fc0
sha1
95e507c986ff78417c8f1895126603cf5f6860a1
sha256
5ef8d8658b89eb0f2b3df90988eb93908c41c5599e197181271203b15e2174fe
sha512
0dc4fa94b0d986eb0d0b4782423f02cd0d544f76e89ca3658bcf8a2ac4e0132aa779cedd3157d3c4467b9cbc9c98718fcff00de6ac72e0bca76f1b0e9dcef3ed
ripemd-160
9a67a774a8daaf80a0fd6cb5ca4b6a67794b274d
Diameter
40779236
Circumference
128111748.2366
Area
1.3060748039283E+15
Volume
3.5507155108696E+22
Surface area
5.2242992157131E+15
Circumference
128111748.2366
Perimeter
81558472
Area
415736522185924
Diagonal
28835274.307207
Surface area
2494419133115544
Volume
8.4767088760195E+21
Space diagonal
35315854.322921
Perimeter
61168854
Area
1.80019194747E+14
Altitude
17657927.16146
Surface area
1.80019194747E+14
Volume
9.9898972139627E+20
Height
9611758.1024022