20807638 is an even 8-digits composite number following 20807637
and preceding 20807639 . In scientific notation, it is written as 2.0807638 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 10403818 positive integers (up to 20807638) that are relatively prime to 20807638.
20807638 has 4 divisors, whose sum is 31211460
The reverse of 20807638 is 83670802
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million eight hundred seven thousand six hundred thirty-eight
Scientific notation
2.0807638 × 10^7
Engineering notation
2.0807638 × 10^6
Prime Factorization
2 × 10403819
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20807638
Product of the distinct prime numbers
The prime factorization of 20807638 is 2 × 10403819.
Since it has a total of 2 prime factors.
5 , 9 , 37 , 15 , 997 , 674 , 4089 , 3830 , 81984 , 97793 , 682334 , 378795 , 862770 , 5730110 , 25429839 , 98337926 , 54331505 , 138326402 , 6342791720 , 3822153813
n×2
41615276
n×3
62422914
n×4
83230552
n×5
104038190
n÷2
10403819
n÷3
6935879.3333333
n÷3
5201909.5
n÷5
4161527.6
n2
432957799139044
n3
9.0088291537619E+21
n4
1.8745245583532E+29
n5
3.9004428432324E+36
2 √n
4561.5389946815
3 √n
275.04743203883
4 √n
67.539166375382
5 √n
29.083358500503
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
-20807637
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 20807638 can be divided by 4 positive divisors.
The sum of these divisors (counting 20807638) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010111111111010110
3
Ternary
1110011010201021
4
Quaternary
1033113333112
5
Quinary
20311321023
6
Senary
2021551354
8
Octal
117277726
10
Decimal
20807638
12
Duodecimal
6b7555a
16
Hexadecimal
13d7fd6
20
Vigesimal
6a0j1i
36
Base36
cdz9y
md5
bbf0ae609dcda88de30583137bd7ef82
sha1
1ea112980e1b505f0500bf6624e4af29761d34b5
sha256
ac79b719adf08609c93ea4516fd79597ea3e62e702470d404e85d7f56052a2dd
sha512
972422a3f6a4e410087a85f3d9c78e1250e0e948a5afb64987ce869f3c06ffec4ae733b2625598cbadf95e21d647f53c265d31b97d6be73454152ae8f22e8b52
ripemd-160
557890d266eb0474ee871031184e10629e6e2627
Diameter
41615276
Circumference
130738245.35871
Area
1.3601770410896E+15
Volume
3.7736095315872E+22
Surface area
5.4407081643585E+15
Circumference
130738245.35871
Perimeter
83230552
Area
432957799139044
Diagonal
29426443.86055
Surface area
2597746794834264
Volume
9.0088291537619E+21
Space diagonal
36039886.201501
Perimeter
62422914
Area
1.8747622641051E+14
Altitude
18019943.10075
Surface area
1.8747622641051E+14
Volume
1.0617006975294E+21
Height
9808814.6201833