20687812 is an even 8-digits composite number following 20687811
and preceding 20687813 . In scientific notation, it is written as 2.0687812 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 6 positive divisors.
There are 10343904 positive integers (up to 20687812) that are relatively prime to 20687812.
20687812 has 6 divisors, whose sum is 36203678
The reverse of 20687812 is 21878602
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred eighty-seven thousand eight hundred twelve
Scientific notation
2.0687812 × 10^7
Engineering notation
2.0687812 × 10^6
Prime Factorization
2 × 2 × 5171953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10343906
Product of the distinct prime numbers
The prime factorization of 20687812 is 2 × 2 × 5171953.
Since it has a total of 3 prime factors.
10 , 6 , 8 , 69 , 377 , 418 , 4009 , 7630 , 13174 , 68712 , 76735 , 819883 , 8620817 , 425154 , 72688908 , 9009619 , 755000181 , 947466318 , 9363822743 , 7494227762
n×2
41375624
n×3
62063436
n×4
82751248
n×5
103439060
n÷2
10343906
n÷3
6895937.3333333
n÷3
5171953
n÷5
4137562.4
n2
427985565347344
n3
8.8540849146196E+21
n4
1.8317164414569E+29
n5
3.7894205378168E+36
2 √n
4548.3856476776
3 √n
274.51843875773
4 √n
67.441720378988
5 √n
29.049784310763
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687812 can be divided by 6 positive divisors.
The sum of these divisors (counting 20687812) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001110111010101111000100
3
Ternary
1102221001100021
4
Quaternary
1032322233010
5
Quinary
20244002222
6
Senary
2015224524
8
Octal
116725704
10
Decimal
20687812
12
Duodecimal
6b18144
16
Hexadecimal
13babc4
20
Vigesimal
695jac
36
Base36
cbetg
md5
1bb1b81598213101d5d066c9effd67a8
sha1
3c2ac5154e5c776f0ad2a20ff30b8abc654dfa00
sha256
daadeb19598a6183565f61c0be10bb65344a93c526b492a5125ce504bf59b28f
sha512
a9f04bcf2043e3570fc2cbd86f46bb91ed645cf6547f220cdc09ebd2e5c8c654fc3d5c190397e1b72583fa944b3005f692c9bdf94b84bb7f1448ca927160a5a8
ripemd-160
b203949b700e78e6836b02e1362ab061faa59daa
Diameter
41375624
Circumference
129985356.39609
Area
1.3445563079377E+15
Volume
3.7087904162705E+22
Surface area
5.3782252317508E+15
Circumference
129985356.39609
Perimeter
82751248
Area
427985565347344
Diagonal
29256984.306225
Surface area
2567913392084064
Volume
8.8540849146196E+21
Space diagonal
35832341.481433
Perimeter
62063436
Area
1.8532318602192E+14
Altitude
17916170.740717
Surface area
1.8532318602192E+14
Volume
1.0434639140548E+21
Height
9752328.102075