21909086 is an even 8-digits composite number following 21909085
and preceding 21909087 . In scientific notation, it is written as 2.1909086 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10954542 positive integers (up to 21909086) that are relatively prime to 21909086.
21909086 has 4 divisors, whose sum is 32863632
The reverse of 21909086 is 68090912
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million nine hundred nine thousand eighty-six
Scientific notation
2.1909086 × 10^7
Engineering notation
2.1909086 × 10^6
Prime Factorization
2 × 10954543
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21909086
Product of the distinct prime numbers
The prime factorization of 21909086 is 2 × 10954543.
Since it has a total of 2 prime factors.
4 , 7 , 87 , 32 , 250 , 452 , 6805 , 6806 , 74846 , 56029 , 510905 , 200797 , 4088645 , 6096674 , 53136349 , 53300979 , 100897186 , 382721194 , 4262261609 , 2702462903
n×2
43818172
n×3
65727258
n×4
87636344
n×5
109545430
n÷2
10954543
n÷3
7303028.6666667
n÷3
5477271.5
n÷5
4381817.2
n2
480008049355396
n3
1.051653763402E+22
n4
2.3040772744597E+29
n5
5.0480227156784E+36
2 √n
4680.714261734
3 √n
279.81742349224
4 √n
68.415745714959
5 √n
29.384942959463
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
-21909085
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 21909086 can be divided by 4 positive divisors.
The sum of these divisors (counting 21909086) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100100111001011110
3
Ternary
1112020002121122
4
Quaternary
1103210321132
5
Quinary
21102042321
6
Senary
2101330542
8
Octal
123447136
10
Decimal
21909086
12
Duodecimal
7406a52
16
Hexadecimal
14e4e5e
20
Vigesimal
6gice6
36
Base36
d1l5q
md5
957e0aa45dab7446fe545894cefa42c5
sha1
9ad94553b758fde08ef79f14229e14891b6699ed
sha256
8660642ca9281db1c62ef7cb2b86bbc899f2494fb899ceae7d110721d4898281
sha512
53f8d3205d5f4bf88d8e6f952bfbf8f33e0f4b1294e8a37b7940629cf24b3cc1adc8f7e87efbd8c3af2c8d7fc5b66ce3011e1b2cf2a4694dc54854892fb5b664
ripemd-160
be022c9a1f1ad58b276c421fc776746069698df9
Diameter
43818172
Circumference
137658847.24893
Area
1.5079897615189E+15
Volume
4.4051569829649E+22
Surface area
6.0319590460755E+15
Circumference
137658847.24893
Perimeter
87636344
Area
480008049355396
Diagonal
30984126.560399
Surface area
2880048296132376
Volume
1.051653763402E+22
Space diagonal
37947650.099396
Perimeter
65727258
Area
2.0784958238139E+14
Altitude
18973825.049698
Surface area
2.0784958238139E+14
Volume
1.2393858459365E+21
Height
10328042.1868