20405521 is an odd 8-digits composite number following 20405520
and preceding 20405522 . In scientific notation, it is written as 2.0405521 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 19930932 positive integers (up to 20405521) that are relatively prime to 20405521.
20405521 has 4 divisors, whose sum is 20880112
The reverse of 20405521 is 12550402
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million four hundred five thousand five hundred twenty-one
Scientific notation
2.0405521 × 10^7
Engineering notation
2.0405521 × 10^6
Prime Factorization
43 × 474547
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20405521
Product of the distinct prime numbers
The prime factorization of 20405521 is 43 × 474547.
Since it has a total of 2 prime factors.
1 , 9 , 14 , 24 , 193 , 423 , 8869 , 315 , 53739 , 82973 , 441551 , 621164 , 869555 , 2780501 , 47664816 , 89061220 , 688611875 , 739112878 , 1264695679 , 8499967700
n×2
40811042
n×3
61216563
n×4
81622084
n×5
102027605
n÷2
10202760.5
n÷3
6801840.3333333
n÷3
5101380.25
n÷5
4081104.2
n2
416385287281441
n3
8.4965587237125E+21
n4
1.7337670746445E+29
n5
3.5378420450767E+36
2 √n
4517.2470598806
3 √n
273.26408897688
4 √n
67.210468380161
5 √n
28.970069531255
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
-20405520
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 20405521 can be divided by 4 positive divisors.
The sum of these divisors (counting 20405521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110101110100010001
3
Ternary
1102101201010001
4
Quaternary
1031311310101
5
Quinary
20210434041
6
Senary
2005210001
8
Octal
115656421
10
Decimal
20405521
12
Duodecimal
6a00901
16
Hexadecimal
1375d11
20
Vigesimal
67adg1
36
Base36
c5d01
md5
16d671ad321746467b9aee0cbee535ac
sha1
c42579bb2330fcf7ee9ee04331cd1d16e3453ad4
sha256
65891978559d228f040dd264cfccdd700e0b908baea17dcbd4c8bf8683ec3972
sha512
3e14998235c87a9d2329e64464f439d951402f36dec0fdbdac091b122d83e140aab30be0466898a4f7622de569e3f15caf91ed8564c7d70fc85906bdd0befcdc
ripemd-160
b8115c872c152240ee885a68b8d4905e9929268d
Diameter
40811042
Circumference
128211669.73254
Area
1.3081129595863E+15
Volume
3.5590301956279E+22
Surface area
5.232451838345E+15
Circumference
128211669.73254
Perimeter
81622084
Area
416385287281441
Diagonal
28857764.545489
Surface area
2498311723688646
Volume
8.4965587237125E+21
Space diagonal
35343399.126914
Perimeter
61216563
Area
1.803001182739E+14
Altitude
17671699.563457
Surface area
1.803001182739E+14
Volume
1.0013290483811E+21
Height
9619254.8484963