20807855 is an odd 8-digits composite number following 20807854
and preceding 20807856 . In scientific notation, it is written as 2.0807855 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 16259232 positive integers (up to 20807855) that are relatively prime to 20807855.
20807855 has 8 divisors, whose sum is 25043472
The reverse of 20807855 is 55870802
Previous prime number is 11993
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million eight hundred seven thousand eight hundred fifty-five
Scientific notation
2.0807855 × 10^7
Engineering notation
2.0807855 × 10^6
Prime Factorization
5 × 11993 × 347
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20807855
Product of the distinct prime numbers
The prime factorization of 20807855 is 5 × 11993 × 347.
Since it has a total of 3 prime factors.
2 , 6 , 7 , 84 , 797 , 508 , 2132 , 1943 , 13593 , 19425 , 49557 , 239961 , 2441638 , 8871048 , 20469740 , 59163166 , 559023826 , 894891528 , 9315923134 , 9721477662
n×2
41615710
n×3
62423565
n×4
83231420
n×5
104039275
n÷2
10403927.5
n÷3
6935951.6666667
n÷3
5201963.75
n÷5
4161571
n2
432966829701025
n3
9.0091110122286E+21
n4
1.8746027562136E+29
n5
3.9006462333892E+36
2 √n
4561.5627804515
3 √n
275.04838817948
4 √n
67.539342463867
5 √n
29.083419161521
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
-20807854
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 20807855 can be divided by 8 positive divisors.
The sum of these divisors (counting 20807855) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000000010101111
3
Ternary
1110011011000022
4
Quaternary
1033120002233
5
Quinary
20311322410
6
Senary
2021552355
8
Octal
117300257
10
Decimal
20807855
12
Duodecimal
6b756bb
16
Hexadecimal
13d80af
20
Vigesimal
6a0jcf
36
Base36
cdzfz
md5
ba94be42eed83ad5511c040ea2755aa2
sha1
aca91720bb9a9e86d7b6ba8e6f16e7724ae83ff1
sha256
6ef01c766e0eb07bcb0860f4e6d2dc71e83c30a29ae8364bdead4f5d59ae8a08
sha512
68e8914feb033f8a365d216e82ce3e1e628f9adb39d5fa45a653fd778d6c8c59c9a04a643d7a616bd19536903fc3d5ece158bbf76be8db083b055ad80e02cc8c
ripemd-160
eedef69ac789a33bf4e0503ea268b38e57bfc3bf
Diameter
41615710
Circumference
130739608.80992
Area
1.3602054114368E+15
Volume
3.7737275961856E+22
Surface area
5.4408216457472E+15
Circumference
130739608.80992
Perimeter
83231420
Area
432966829701025
Diagonal
29426750.744893
Surface area
2597800978206150
Volume
9.0091110122286E+21
Space diagonal
36040262.056526
Perimeter
62423565
Area
1.8748013675855E+14
Altitude
18020131.028263
Surface area
1.8748013675855E+14
Volume
1.0617339148682E+21
Height
9808916.9149643