20943487 is an odd 8-digits composite number following 20943486
and preceding 20943488 . In scientific notation, it is written as 2.0943487 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 20893320 positive integers (up to 20943487) that are relatively prime to 20943487.
20943487 has 4 divisors, whose sum is 20993656
The reverse of 20943487 is 78434902
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million nine hundred forty-three thousand four hundred eighty-seven
Scientific notation
2.0943487 × 10^7
Engineering notation
2.0943487 × 10^6
Prime Factorization
421 × 49747
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20943487
Product of the distinct prime numbers
The prime factorization of 20943487 is 421 × 49747.
Since it has a total of 2 prime factors.
5 , 2 , 8 , 79 , 878 , 608 , 6817 , 7657 , 9726 , 96991 , 182087 , 212629 , 7847858 , 7395962 , 69962604 , 89404040 , 431741449 , 229624356 , 9441714112 , 8659053597
n×2
41886974
n×3
62830461
n×4
83773948
n×5
104717435
n÷2
10471743.5
n÷3
6981162.3333333
n÷3
5235871.75
n÷5
4188697.4
n2
438629647719169
n3
9.186434324821E+21
n4
1.9239596785824E+29
n5
4.0294424516915E+36
2 √n
4576.4054671762
3 √n
275.64471104727
4 √n
67.649135006859
5 √n
29.121235624511
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
-20943486
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 20943487 can be divided by 4 positive divisors.
The sum of these divisors (counting 20943487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111001001001111111
3
Ternary
1110102001001201
4
Quaternary
1033321021333
5
Quinary
20330142422
6
Senary
2024520331
8
Octal
117711177
10
Decimal
20943487
12
Duodecimal
70200a7
16
Hexadecimal
13f927f
20
Vigesimal
6ahie7
36
Base36
cgw3j
md5
618078c796860ba076df28bb7f638b3e
sha1
9c9925191cc3631d06275dee2d1785c3139dcca7
sha256
e9f0e876ce0f9247265b4b91851c3db622fc3bead103a6b29d551767ae33f649
sha512
690228fca17ac6763d13abfa999699aa633d83c41d74b2fed31fa2d713461daaf1bb1e7973b3cd836d1d089abb7054fd328c83c10881ae32a024ff645948d762
ripemd-160
dbb342fee9f150ded96bedc02e10612b5697a386
Diameter
41886974
Circumference
131591809.79951
Area
1.3779956789212E+15
Volume
3.8480046116724E+22
Surface area
5.5119827156849E+15
Circumference
131591809.79951
Perimeter
83773948
Area
438629647719169
Diagonal
29618563.358785
Surface area
2631777886315014
Volume
9.186434324821E+21
Space diagonal
36275183.571658
Perimeter
62830461
Area
1.8993220888891E+14
Altitude
18137591.785829
Surface area
1.8993220888891E+14
Volume
1.0826316676676E+21
Height
9872854.4529282