20402643 is an odd 8-digits composite number following 20402642
and preceding 20402644 . In scientific notation, it is written as 2.0402643 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13586400 positive integers (up to 20402643) that are relatively prime to 20402643.
20402643 has 8 divisors, whose sum is 27234256
The reverse of 20402643 is 34620402
Previous prime number is 1021
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred two thousand six hundred forty-three
Scientific notation
2.0402643 × 10^7
Engineering notation
2.0402643 × 10^6
Prime Factorization
3 × 1021 × 6661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20402643
Product of the distinct prime numbers
The prime factorization of 20402643 is 3 × 1021 × 6661.
Since it has a total of 3 prime factors.
4 , 3 , 83 , 33 , 594 , 636 , 7527 , 3666 , 35036 , 65039 , 836074 , 122642 , 8357752 , 2901214 , 38703927 , 44204355 , 458421589 , 222009127 , 4359567308 , 7855354147
n×2
40805286
n×3
61207929
n×4
81610572
n×5
102013215
n÷2
10201321.5
n÷3
6800881
n÷3
5100660.75
n÷5
4080528.6
n2
416267841385449
n3
8.4929641601679E+21
n4
1.732789157717E+29
n5
3.5353478579171E+36
2 √n
4516.9284917962
3 √n
273.25124129341
4 √n
67.208098409315
5 √n
28.969252295917
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
-20402642
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 20402643 can be divided by 8 positive divisors.
The sum of these divisors (counting 20402643) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101000111010011
3
Ternary
1102101120011110
4
Quaternary
1031311013103
5
Quinary
20210341033
6
Senary
2005144403
8
Octal
115650723
10
Decimal
20402643
12
Duodecimal
69bb103
16
Hexadecimal
13751d3
20
Vigesimal
67a6c3
36
Base36
c5as3
md5
d77adff292f5435bd3291c53210c8ed0
sha1
93fa84d3f9d9f7dd61f7548a28a1834978a3c3cf
sha256
ea4cae2d08794fff2d7baa9b9e4972ca5751cbaf316bc56ddc468e8c627ee391
sha512
686fe3b80916dc3b67a541392db07171f09195b2ca6b3b59484dc0ac81806c738bc7ef01a8e44438c4812156c52c91a6c292c8bc8dfc96e214ebd118d267cacb
ripemd-160
11e55f5d8cb4ebaa6b0b1fcc04d076d872a7dcc4
Diameter
40805286
Circumference
128193586.72523
Area
1.3077439924222E+15
Volume
3.5575245083713E+22
Surface area
5.2309759696888E+15
Circumference
128193586.72523
Perimeter
81610572
Area
416267841385449
Diagonal
28853694.438856
Surface area
2497607048312694
Volume
8.4929641601679E+21
Space diagonal
35338414.28469
Perimeter
61207929
Area
1.8024926270916E+14
Altitude
17669207.142345
Surface area
1.8024926270916E+14
Volume
1.0009054250048E+21
Height
9617898.1462855