20431640 is an even 8-digits composite number following 20431639
and preceding 20431641 . In scientific notation, it is written as 2.0431640 × 10^7.
The sum of its digits is 20. It has a total of 6 prime factors and 32 positive divisors.
There are 8143872 positive integers (up to 20431640) that are relatively prime to 20431640.
20431640 has 32 divisors, whose sum is 46133280
The reverse of 20431640 is 04613402
Previous prime number is 353
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million four hundred thirty-one thousand six hundred forty
Scientific notation
2.0431640 × 10^7
Engineering notation
2.0431640 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 353 × 1447
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5107910
Product of the distinct prime numbers
The prime factorization of 20431640 is 2 × 2 × 2 × 5 × 353 × 1447.
Since it has a total of 6 prime factors.
2 , 6 , 20 , 97 , 116 , 478 , 9278 , 893 , 68452 , 19430 , 577040 , 493277 , 6358081 , 6236615 , 72509372 , 15961431 , 301282433 , 345317529 , 1696071222 , 6212039707
n×2
40863280
n×3
61294920
n×4
81726560
n×5
102158200
n÷2
10215820
n÷3
6810546.6666667
n÷3
5107910
n÷5
4086328
n2
417451913089600
n3
8.529227205558E+21
n4
1.7426609974217E+29
n5
3.560542214136E+36
2 √n
4520.1371660603
3 √n
273.38063164569
4 √n
67.231965359198
5 √n
28.977482055833
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 353 , 706 , 1412 , 1447 , 1765 , 2824 , 2894 , 3530 , 5788 , 7060 , 7235 , 11576 , 14120 , 14470 , 28940 , 57880 , 510791 , 1021582 , 2043164 , 2553955 , 4086328 , 5107910 , 10215820 , 20431640
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20431639
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20431640 can be divided by 32 positive divisors.
The sum of these divisors (counting 20431640) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101111100001100011000
3
Ternary
1102110000221102
4
Quaternary
1031330030120
5
Quinary
20212303030
6
Senary
2005530532
8
Octal
115741430
10
Decimal
20431640
12
Duodecimal
6a13a48
16
Hexadecimal
137c318
20
Vigesimal
67dj20
36
Base36
c5x5k
md5
f564cf1ebb106aaf3b894f4f1a8ff42a
sha1
f209500587d90a4cb0b557c44334525576dd4d1d
sha256
a9c68072e90154d009edab378614b0ab18a58509e21b728547079d3b015b12c4
sha512
2b22cc42439f77134e1d4b8acd2b7187543d66b5a1f9c6bbd8af20bf909506e3b5af300fe71f3cc8914564c6fcf7e44acc32e02aeaf199a0a9b9e983e3d30ade
ripemd-160
d673c6a03f221b52d21b9ae7726969f06fb3ca28
Diameter
40863280
Circumference
128375780.24958
Area
1.3114638633893E+15
Volume
3.5727143373039E+22
Surface area
5.2458554535572E+15
Circumference
128375780.24958
Perimeter
81726560
Area
417451913089600
Diagonal
28894702.389525
Surface area
2504711478537600
Volume
8.529227205558E+21
Space diagonal
35388638.561957
Perimeter
61294920
Area
1.80761980797E+14
Altitude
17694319.280978
Surface area
1.80761980797E+14
Volume
1.0051790658885E+21
Height
9631567.4631749