20391497 is an odd 8-digits composite number following 20391496
and preceding 20391498 . In scientific notation, it is written as 2.0391497 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 17478384 positive integers (up to 20391497) that are relatively prime to 20391497.
20391497 has 4 divisors, whose sum is 20807700
The reverse of 20391497 is 79419302
Previous prime number is 49
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million three hundred ninety-one thousand four hundred ninety-seven
Scientific notation
2.0391497 × 10^7
Engineering notation
2.0391497 × 10^6
Prime Factorization
49 × 416153
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20391497
Product of the distinct prime numbers
The prime factorization of 20391497 is 49 × 416153.
Since it has a total of 2 prime factors.
3 , 2 , 73 , 85 , 14 , 706 , 8842 , 2954 , 92041 , 55013 , 372767 , 411933 , 5307837 , 4979327 , 53680737 , 38599431 , 739701172 , 320686719 , 1997819408 , 3841221236
n×2
40782994
n×3
61174491
n×4
81565988
n×5
101957485
n÷2
10195748.5
n÷3
6797165.6666667
n÷3
5097874.25
n÷5
4078299.4
n2
415813149901009
n3
8.479052598767E+21
n4
1.729005756306E+29
n5
3.5257015692696E+36
2 √n
4515.6945202261
3 √n
273.20147301715
4 √n
67.198917552488
5 √n
28.966086413265
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
-20391496
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 20391497 can be divided by 4 positive divisors.
The sum of these divisors (counting 20391497) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110010011001001001
3
Ternary
1102100222212122
4
Quaternary
1031302121021
5
Quinary
20210011442
6
Senary
2005021025
8
Octal
115623111
10
Decimal
20391497
12
Duodecimal
69b4775
16
Hexadecimal
1372649
20
Vigesimal
678ieh
36
Base36
c526h
md5
ce75a4a1bddd9fb01cd77afe45e3363c
sha1
0643943a867dc5d293085d5403ae7d2b626a5ae5
sha256
cc895ba68ef7e8b42e1f9c2daa73ca347f6649f262776cdbad12e3cad9596fcf
sha512
fdf9e6cf58de3c9437cefd14c542d3ece703970a8bea7e906bbd1b25f79accd8d514662ff2de5c7920f6ace80b010e2ae20cafd76ce6934aeaf59cc536fca795
ripemd-160
0c4e075336105f8dfda6860b8e7b5eafb4dfe6c3
Diameter
40782994
Circumference
128123554.3418
Area
1.306315536995E+15
Volume
3.5516972471584E+22
Surface area
5.2252621479802E+15
Circumference
128123554.3418
Perimeter
81565988
Area
415813149901009
Diagonal
28837931.61449
Surface area
2494878899406054
Volume
8.479052598767E+21
Space diagonal
35319108.846388
Perimeter
61174491
Area
1.8005237552095E+14
Altitude
17659554.423194
Surface area
1.8005237552095E+14
Volume
9.9926593177092E+20
Height
9612643.8714968