20872018 is an even 8-digits composite number following 20872017
and preceding 20872019 . In scientific notation, it is written as 2.0872018 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 10429440 positive integers (up to 20872018) that are relatively prime to 20872018.
20872018 has 8 divisors, whose sum is 31327740
The reverse of 20872018 is 81027802
Previous prime number is 2689
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred seventy-two thousand eighteen
Scientific notation
2.0872018 × 10^7
Engineering notation
2.0872018 × 10^6
Prime Factorization
2 × 2689 × 3881
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20872018
Product of the distinct prime numbers
The prime factorization of 20872018 is 2 × 2689 × 3881.
Since it has a total of 3 prime factors.
7 , 5 , 23 , 69 , 421 , 651 , 5555 , 9265 , 34854 , 13343 , 50671 , 625176 , 9092467 , 7842848 , 49716016 , 95235525 , 724727376 , 876447735 , 3615655714 , 3247137796
n×2
41744036
n×3
62616054
n×4
83488072
n×5
104360090
n÷2
10436009
n÷3
6957339.3333333
n÷3
5218004.5
n÷5
4174403.6
n2
435641135392324
n3
9.092709619449E+21
n4
1.8978319884591E+29
n5
3.9611583424095E+36
2 √n
4568.5903734084
3 √n
275.33081070777
4 √n
67.591348362112
5 √n
29.101333376894
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
-20872017
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 20872018 can be divided by 8 positive divisors.
The sum of these divisors (counting 20872018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100111101101010010
3
Ternary
1110021102000201
4
Quaternary
1033213231102
5
Quinary
20320401033
6
Senary
2023205414
8
Octal
117475522
10
Decimal
20872018
12
Duodecimal
6ba686a
16
Hexadecimal
13e7b52
20
Vigesimal
6a900i
36
Base36
cfcya
md5
6fde715c4a3bd691f0d6994ffab9c975
sha1
ce04add73ecb96dbf467d0266d924a9221b5d44a
sha256
5190d891a342c47304d6a8521c31bfd59d96dc47ab545ea9c98f56616ba19915
sha512
6bb9c809a35d6e67c9c1e36ed95d0d5ddcc7f6ddd085c26683c772ac8ceef40704d578780ec942985880b8fa4c9e79af878d307acbcbd487347d96a4e0d466cd
ripemd-160
86dc9fe07612b2ed7b65cc2caad224acce82acd7
Diameter
41744036
Circumference
131142756.82879
Area
1.36860699055E+15
Volume
3.8087452988915E+22
Surface area
5.4744279622002E+15
Circumference
131142756.82879
Perimeter
83488072
Area
435641135392324
Diagonal
29517490.929695
Surface area
2613846812353944
Volume
9.092709619449E+21
Space diagonal
36151395.632492
Perimeter
62616054
Area
1.8863814509162E+14
Altitude
18075697.816246
Surface area
1.8863814509162E+14
Volume
1.0715861052121E+21
Height
9839163.6432318