20802638 is an even 8-digits composite number following 20802637
and preceding 20802639 . In scientific notation, it is written as 2.0802638 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 10357920 positive integers (up to 20802638) that are relatively prime to 20802638.
20802638 has 8 divisors, whose sum is 31334160
The reverse of 20802638 is 83620802
Previous prime number is 241
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eight hundred two thousand six hundred thirty-eight
Scientific notation
2.0802638 × 10^7
Engineering notation
2.0802638 × 10^6
Prime Factorization
2 × 241 × 43159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20802638
Product of the distinct prime numbers
The prime factorization of 20802638 is 2 × 241 × 43159.
Since it has a total of 3 prime factors.
6 , 4 , 39 , 38 , 657 , 180 , 883 , 5312 , 25060 , 52694 , 173619 , 11355 , 566927 , 7472857 , 67465820 , 32309874 , 530002369 , 848341600 , 7976060716 , 2259324492
n×2
41605276
n×3
62407914
n×4
83210552
n×5
104013190
n÷2
10401319
n÷3
6934212.6666667
n÷3
5200659.5
n÷5
4160527.6
n2
432749747759044
n3
9.0023363472227E+21
n4
1.8727234418552E+29
n5
3.8957587835027E+36
2 √n
4560.9909011091
3 √n
275.02539930691
4 √n
67.535108655492
5 √n
29.081960641008
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
-20802637
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 20802638 can be divided by 8 positive divisors.
The sum of these divisors (counting 20802638) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010110110001001110
3
Ternary
1110010212212002
4
Quaternary
1033112301032
5
Quinary
20311141023
6
Senary
2021512302
8
Octal
117266116
10
Decimal
20802638
12
Duodecimal
6b72692
16
Hexadecimal
13d6c4e
20
Vigesimal
6a06bi
36
Base36
cdvf2
md5
f169a48a469df42ad6a21244bad16bf5
sha1
af9882ce8219b795eb3ed758ebe57cdcb401db63
sha256
8c0d0eaf03ba6d9628801c3b3de362079d2a0caf9a31933731e91d902d539522
sha512
e9a6a9d9d8704f13ac7b918e46c35eafe5e47945159fc07a87e9fccae45c6889025903311493055d496c780abe3ff931907bf3b40160960828a4b28d894771b2
ripemd-160
6e09d598ec4bc217f6f64cba2b281a46d7ad9455
Diameter
41605276
Circumference
130706829.43218
Area
1.3595234284026E+15
Volume
3.7708898311439E+22
Surface area
5.4380937136106E+15
Circumference
130706829.43218
Perimeter
83210552
Area
432749747759044
Diagonal
29419372.792738
Surface area
2596498486554264
Volume
9.0023363472227E+21
Space diagonal
36031225.947463
Perimeter
62407914
Area
1.8738613752032E+14
Altitude
18015612.973732
Surface area
1.8738613752032E+14
Volume
1.0609355129406E+21
Height
9806457.5975793