20387730 is an even 8-digits composite number following 20387729
and preceding 20387731 . In scientific notation, it is written as 2.0387730 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 4942400 positive integers (up to 20387730) that are relatively prime to 20387730.
20387730 has 16 divisors, whose sum is 35586432
The reverse of 20387730 is 03778302
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million three hundred eighty-seven thousand seven hundred thirty
Scientific notation
2.0387730 × 10^7
Engineering notation
2.0387730 × 10^6
Prime Factorization
2 × 15 × 11 × 61781
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20387730
Product of the distinct prime numbers
The prime factorization of 20387730 is 2 × 15 × 11 × 61781.
Since it has a total of 4 prime factors.
7 , 9 , 89 , 61 , 62 , 375 , 3512 , 290 , 75568 , 41200 , 452969 , 396793 , 8571009 , 4375605 , 89810427 , 89686519 , 324829133 , 360891892 , 3574618046 , 8627201839
n×2
40775460
n×3
61163190
n×4
81550920
n×5
101938650
n÷2
10193865
n÷3
6795910
n÷3
5096932.5
n÷5
4077546
n2
415659534552900
n3
8.4743543623902E+21
n4
1.7277284866473E+29
n5
3.5224461899074E+36
2 √n
4515.2774001162
3 √n
273.18464879333
4 √n
67.195813858574
5 √n
28.965016130771
1 , 2 , 11 , 15 , 22 , 30 , 165 , 330 , 61781 , 123562 , 679591 , 926715 , 1359182 , 1853430 , 10193865 , 20387730
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20387729
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20387730 can be divided by 16 positive divisors.
The sum of these divisors (counting 20387730) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101110001011110010010
3
Ternary
1102100210201010
4
Quaternary
1031301132102
5
Quinary
20204401410
6
Senary
2004551350
8
Octal
115613622
10
Decimal
20387730
12
Duodecimal
69b2556
16
Hexadecimal
1371792
20
Vigesimal
67896a
36
Base36
c4z9u
md5
412df4049f88d791badf76e3afd6d75d
sha1
26fd74ac439af898c191b22046da0d3adceb2ec0
sha256
8c94da694545c9be6fe42e77dbcb5713beea399f3b8ab68b8f26275fae4b9306
sha512
2784cf323f508dec284b737b70adf0e55e640214c47a41f2ffba2d5c36877bf0b537a6bcc8d851bc7bba5b6c2369881d7495aa10393c456fd76f2237b7d0525a
ripemd-160
2f01a8085ea5eac33c6027ec68392bd3be5b3d49
Diameter
40775460
Circumference
128099885.58274
Area
1.3058329401459E+15
Volume
3.5497292545069E+22
Surface area
5.2233317605838E+15
Circumference
128099885.58274
Perimeter
81550920
Area
415659534552900
Diagonal
28832604.272001
Surface area
2493957207317400
Volume
8.4743543623902E+21
Space diagonal
35312584.210996
Perimeter
61163190
Area
1.7998585812401E+14
Altitude
17656292.105498
Surface area
1.7998585812401E+14
Volume
9.9871223930398E+20
Height
9610868.0906669