20561641 is an odd 8-digits composite number following 20561640
and preceding 20561642 . In scientific notation, it is written as 2.0561641 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20454912 positive integers (up to 20561641) that are relatively prime to 20561641.
20561641 has 4 divisors, whose sum is 20668372
The reverse of 20561641 is 14616502
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million five hundred sixty-one thousand six hundred forty-one
Scientific notation
2.0561641 × 10^7
Engineering notation
2.0561641 × 10^6
Prime Factorization
193 × 106537
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20561641
Product of the distinct prime numbers
The prime factorization of 20561641 is 193 × 106537.
Since it has a total of 2 prime factors.
10 , 10 , 76 , 60 , 621 , 697 , 8697 , 3201 , 97489 , 81055 , 751670 , 944298 , 5032085 , 5779681 , 21543650 , 12190309 , 192294673 , 42814965 , 9273578854 , 2654521797
n×2
41123282
n×3
61684923
n×4
82246564
n×5
102808205
n÷2
10280820.5
n÷3
6853880.3333333
n÷3
5140410.25
n÷5
4112328.2
n2
422781080612881
n3
8.6930728011541E+21
n4
1.787438421242E+29
n5
3.6752667127184E+36
2 √n
4534.494569409
3 √n
273.95922191381
4 √n
67.338655833103
5 √n
29.014263738213
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
-20561640
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 20561641 can be divided by 4 positive divisors.
The sum of these divisors (counting 20561641) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110011011111011101001
3
Ternary
1102200122021021
4
Quaternary
1032123323221
5
Quinary
20230433031
6
Senary
2012412441
8
Octal
116337351
10
Decimal
20561641
12
Duodecimal
6a77121
16
Hexadecimal
139bee9
20
Vigesimal
68a421
36
Base36
c8pgp
md5
4371b214e4318601c0d903151599cb80
sha1
95897afbedd7502f56a98466581be09615f460b0
sha256
16bb479846ce1be5a5d38931d228b834faa6d16051cdeee7fef2bedd3ad3045c
sha512
cfef8fee3d1d693bc32aadc419c089171db62f7af7e33af84f88c4c61cbb39448b6f347a22dfd3f9c4b6da0df1f03f924d11e8795c93081bf6beaa7e3c488938
ripemd-160
da7b421fb9085ea7fea66b2cc5341ad7e97254aa
Diameter
41123282
Circumference
129192600.6227
Area
1.3282059369302E+15
Volume
3.6413458198969E+22
Surface area
5.3128237477207E+15
Circumference
129192600.6227
Perimeter
82246564
Area
422781080612881
Diagonal
29078551.566847
Surface area
2536686483677286
Volume
8.6930728011541E+21
Space diagonal
35613806.898991
Perimeter
61684923
Area
1.830695780251E+14
Altitude
17806903.449496
Surface area
1.830695780251E+14
Volume
1.0244884545074E+21
Height
9692850.5222822