20487142 is an even 8-digits composite number following 20487141
and preceding 20487143 . In scientific notation, it is written as 2.0487142 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 8899200 positive integers (up to 20487142) that are relatively prime to 20487142.
20487142 has 8 divisors, whose sum is 30870432
The reverse of 20487142 is 24178402
Previous prime number is 221
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million four hundred eighty-seven thousand one hundred forty-two
Scientific notation
2.0487142 × 10^7
Engineering notation
2.0487142 × 10^6
Prime Factorization
2 × 221 × 46351
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20487142
Product of the distinct prime numbers
The prime factorization of 20487142 is 2 × 221 × 46351.
Since it has a total of 3 prime factors.
5 , 6 , 65 , 38 , 815 , 617 , 2262 , 3882 , 47333 , 5352 , 358135 , 540564 , 8358914 , 5462140 , 68888893 , 76796505 , 225232341 , 733535852 , 3946703891 , 9208511562
n×2
40974284
n×3
61461426
n×4
81948568
n×5
102435710
n÷2
10243571
n÷3
6829047.3333333
n÷3
5121785.5
n÷5
4097428.4
n2
419722987328164
n3
8.5989244420563E+21
n4
1.7616738609168E+29
n5
3.609166254629E+36
2 √n
4526.2724177849
3 √n
273.62795154339
4 √n
67.277577377495
5 √n
28.993208287125
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
-20487141
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 20487142 can be divided by 8 positive divisors.
The sum of these divisors (counting 20487142) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001001101111100110
3
Ternary
1102112212002001
4
Quaternary
1032021233212
5
Quinary
20221042032
6
Senary
2011035514
8
Octal
116115746
10
Decimal
20487142
12
Duodecimal
6a3bb9a
16
Hexadecimal
1389be6
20
Vigesimal
680hh2
36
Base36
c73za
md5
b6acf427e3a9f02934d150b6f7ddcd41
sha1
3c45792570dc2e00cd7916e40a0562546f293e5b
sha256
9f3511d0e0f1fd7b8e62371f77427a5b9a42fe43f029440b7d25267b8ee383e3
sha512
c6ebb31a40e00cec540eed6f5b89adc255f34ed17d115a7d1082a707463d2058d749be3b5584a5b6c1acc17656ee504f5ac1fb9097cc6cd02030a482d11e71c8
ripemd-160
3abc3222e4982623261239ef73ac931f9e6be21a
Diameter
40974284
Circumference
128724509.6005
Area
1.3185986535329E+15
Volume
3.6019090474584E+22
Surface area
5.2743946141317E+15
Circumference
128724509.6005
Perimeter
81948568
Area
419722987328164
Diagonal
28973194.070663
Surface area
2518337923968984
Volume
8.5989244420563E+21
Space diagonal
35484770.845878
Perimeter
61461426
Area
1.8174538478924E+14
Altitude
17742385.422939
Surface area
1.8174538478924E+14
Volume
1.0133929639815E+21
Height
9657731.3568878