20561690 is an even 8-digits composite number following 20561689
and preceding 20561691 . In scientific notation, it is written as 2.0561690 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 8211984 positive integers (up to 20561690) that are relatively prime to 20561690.
20561690 has 16 divisors, whose sum is 37068192
The reverse of 20561690 is 09616502
Previous prime number is 907
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million five hundred sixty-one thousand six hundred ninety
Scientific notation
2.0561690 × 10^7
Engineering notation
2.0561690 × 10^6
Prime Factorization
2 × 5 × 907 × 2267
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20561690
Product of the distinct prime numbers
The prime factorization of 20561690 is 2 × 5 × 907 × 2267.
Since it has a total of 4 prime factors.
5 , 7 , 43 , 43 , 46 , 693 , 1317 , 6969 , 41783 , 20547 , 402214 , 378607 , 1236162 , 4012254 , 66020017 , 48395066 , 417389364 , 62550701 , 838892845 , 8000531590
n×2
41123380
n×3
61685070
n×4
82246760
n×5
102808450
n÷2
10280845
n÷3
6853896.6666667
n÷3
5140422.5
n÷5
4112338
n2
422783095656100
n3
8.6931349501211E+21
n4
1.7874554597256E+29
n5
3.6753105051684E+36
2 √n
4534.4999724336
3 √n
273.95943953573
4 √n
67.338695951389
5 √n
29.014277566853
1 , 2 , 5 , 10 , 907 , 1814 , 2267 , 4534 , 4535 , 9070 , 11335 , 22670 , 2056169 , 4112338 , 10280845 , 20561690
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20561689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20561690 can be divided by 16 positive divisors.
The sum of these divisors (counting 20561690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110011011111100011010
3
Ternary
1102200122100002
4
Quaternary
1032123330122
5
Quinary
20230433230
6
Senary
2012413002
8
Octal
116337432
10
Decimal
20561690
12
Duodecimal
6a77162
16
Hexadecimal
139bf1a
20
Vigesimal
68a44a
36
Base36
c8pi2
md5
7e129ecf5ab1919aa29c232c84dcbd98
sha1
c8ed620c3a190bd6a41e03d6db85a2ecd3a50f59
sha256
74270abe12258ef062cffd6c1fbc5a1f06b02bcf01005afeba698481e7bcef33
sha512
df264e09ce2e2416e15e9664788267372bf7990f39c4c3c010d5d949e1ebcf59da3dc111e3b4bdfd5a3624e06792ea72a6195b6a1a9918b6ffc7a841cdb02514
ripemd-160
4c983794921795fea7e04c011f7632515f7feb1f
Diameter
41123380
Circumference
129192908.49878
Area
1.3282122673752E+15
Volume
3.6413718527953E+22
Surface area
5.3128490695006E+15
Circumference
129192908.49878
Perimeter
82246760
Area
422783095656100
Diagonal
29078620.863311
Surface area
2536698573936600
Volume
8.6931349501211E+21
Space diagonal
35613891.769481
Perimeter
61685070
Area
1.830704505644E+14
Altitude
17806945.88474
Surface area
1.830704505644E+14
Volume
1.0244957788334E+21
Height
9692873.6211037