20802643 is an odd 8-digits composite number following 20802642
and preceding 20802644 . In scientific notation, it is written as 2.0802643 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20064000 positive integers (up to 20802643) that are relatively prime to 20802643.
20802643 has 4 divisors, whose sum is 20815488
The reverse of 20802643 is 34620802
Previous prime number is 10943
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million eight hundred two thousand six hundred forty-three
Scientific notation
2.0802643 × 10^7
Engineering notation
2.0802643 × 10^6
Prime Factorization
10943 × 1901
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20802643
Product of the distinct prime numbers
The prime factorization of 20802643 is 10943 × 1901.
Since it has a total of 2 prime factors.
8 , 3 , 66 , 29 , 741 , 813 , 39 , 179 , 42538 , 29641 , 217492 , 111824 , 7054236 , 719536 , 31040392 , 9302126 , 332818068 , 932069681 , 9557697829 , 9766967032
n×2
41605286
n×3
62407929
n×4
83210572
n×5
104013215
n÷2
10401321.5
n÷3
6934214.3333333
n÷3
5200660.75
n÷5
4160528.6
n2
432749955785449
n3
9.0023428384705E+21
n4
1.8727252423231E+29
n5
3.8957634653136E+36
2 √n
4560.9914492356
3 √n
275.02542134141
4 √n
67.535112713577
5 √n
29.081962039002
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
-20802642
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 20802643 can be divided by 4 positive divisors.
The sum of these divisors (counting 20802643) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010110110001010011
3
Ternary
1110010212212021
4
Quaternary
1033112301103
5
Quinary
20311141033
6
Senary
2021512311
8
Octal
117266123
10
Decimal
20802643
12
Duodecimal
6b72697
16
Hexadecimal
13d6c53
20
Vigesimal
6a06c3
36
Base36
cdvf7
md5
38aa6a6165108be528d6c7a07bf7a29e
sha1
482eb3b3c23707642f0693f945381d7c840f17dd
sha256
d1434c2645a8824a7a425933ba67cbc7cdfed77f35034c6afdb6ba3615e3e8a5
sha512
ff747b8d08097116041182c508263dc9b02f653643cad2f2fa02e0871d6a74041cf8e1b4aa13b06a3b4cd14f38df21b830480aa7d6732f660db5eebff354a372
ripemd-160
94fb5cd5e95dde589fe9b4b0bf24d2af262efff3
Diameter
41605286
Circumference
130706860.8481
Area
1.3595240819369E+15
Volume
3.7708925501914E+22
Surface area
5.4380963277475E+15
Circumference
130706860.8481
Perimeter
83210572
Area
432749955785449
Diagonal
29419379.863806
Surface area
2596499734712694
Volume
9.0023428384705E+21
Space diagonal
36031234.607717
Perimeter
62407929
Area
1.873862275984E+14
Altitude
18015617.303859
Surface area
1.873862275984E+14
Volume
1.0609362779414E+21
Height
9806459.9546019