20389747 is an odd 8-digits composite number following 20389746
and preceding 20389748 . In scientific notation, it is written as 2.0389747 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 17364672 positive integers (up to 20389747) that are relatively prime to 20389747.
20389747 has 8 divisors, whose sum is 23452256
The reverse of 20389747 is 74798302
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million three hundred eighty-nine thousand seven hundred forty-seven
Scientific notation
2.0389747 × 10^7
Engineering notation
2.0389747 × 10^6
Prime Factorization
7 × 157 × 18553
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20389747
Product of the distinct prime numbers
The prime factorization of 20389747 is 7 × 157 × 18553.
Since it has a total of 3 prime factors.
10 , 10 , 75 , 41 , 800 , 506 , 8397 , 9508 , 55717 , 62367 , 394417 , 955899 , 7710082 , 8386393 , 1201098 , 80834238 , 178285658 , 776775707 , 4367924960 , 9877038068
n×2
40779494
n×3
61169241
n×4
81558988
n×5
101948735
n÷2
10194873.5
n÷3
6796582.3333333
n÷3
5097436.75
n÷5
4077949.4
n2
415741782724009
n3
8.4768697670715E+21
n4
1.7284122990254E+29
n5
3.5241889488816E+36
2 √n
4515.5007474255
3 √n
273.19365740238
4 √n
67.197475751887
5 √n
28.965589221799
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
-20389746
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 20389747 can be divided by 8 positive divisors.
The sum of these divisors (counting 20389747) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110001111101110011
3
Ternary
1102100220110211
4
Quaternary
1031301331303
5
Quinary
20204432442
6
Senary
2005004551
8
Octal
115617563
10
Decimal
20389747
12
Duodecimal
69b3757
16
Hexadecimal
1371f73
20
Vigesimal
678e77
36
Base36
c50tv
md5
5431e28d7c96aa121bcefee367d66924
sha1
f6b9aa6cfd0f8f2efaf2008cc9408627ceab8a84
sha256
eff5155e11e5ec2f51532b9003f1cd2b39053172d9c2f97f1db8443bcdce8fd2
sha512
3d6f8080fafcbdf2da3999c626d0660e16b6c8f9f6bfa3c486a84c47bc7220cc16464b60991b705708cbb1f3284db1309be6c726fb6ed84e494a9fbe51fac934
ripemd-160
3b34eeace6410af9829b58bb8ded61e7859e3a22
Diameter
40779494
Circumference
128112558.76751
Area
1.3060913303961E+15
Volume
3.5507829047559E+22
Surface area
5.2243653215843E+15
Circumference
128112558.76751
Perimeter
81558988
Area
415741782724009
Diagonal
28835456.740756
Surface area
2494450696344054
Volume
8.4768697670715E+21
Space diagonal
35316077.757475
Perimeter
61169241
Area
1.8002147262681E+14
Altitude
17658038.878738
Surface area
1.8002147262681E+14
Volume
9.9900868258858E+20
Height
9611818.9135854