21919909 is an odd 8-digits composite number following 21919908
and preceding 21919910 . In scientific notation, it is written as 2.1919909 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 19927180 positive integers (up to 21919909) that are relatively prime to 21919909.
21919909 has 4 divisors, whose sum is 23912640
The reverse of 21919909 is 90991912
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million nine hundred nineteen thousand nine hundred nine
Scientific notation
2.1919909 × 10^7
Engineering notation
2.1919909 × 10^6
Prime Factorization
11 × 1992719
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21919909
Product of the distinct prime numbers
The prime factorization of 21919909 is 11 × 1992719.
Since it has a total of 2 prime factors.
5 , 1 , 1 , 34 , 576 , 101 , 9893 , 8730 , 37356 , 68797 , 987464 , 292023 , 7223248 , 5911681 , 64555363 , 31570884 , 457479040 , 331703977 , 6646777170 , 9440888638
n×2
43839818
n×3
65759727
n×4
87679636
n×5
109599545
n÷2
10959954.5
n÷3
7306636.3333333
n÷3
5479977.25
n÷5
4383981.8
n2
480482410568281
n3
1.0532130715757E+22
n4
2.3086334686551E+29
n5
5.0605035547273E+36
2 √n
4681.8702459594
3 √n
279.86349213286
4 √n
68.424193425713
5 √n
29.387845594593
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
-21919908
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 21919909 can be divided by 4 positive divisors.
The sum of these divisors (counting 21919909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100111100010100101
3
Ternary
1112020122110111
4
Quaternary
1103213202211
5
Quinary
21102414114
6
Senary
2101453021
8
Octal
123474245
10
Decimal
21919909
12
Duodecimal
7411171
16
Hexadecimal
14e78a5
20
Vigesimal
6gjjf9
36
Base36
d1tid
md5
bfb16dac4d16e51c2954b5c3d34607d9
sha1
83309f8cff61bdbc21e74c8ea51bb4aa1ea2dea2
sha256
b0bb5f248fb3e6ab390a2526a51b437011cf4a447563556ad23bd47fcfc12dd9
sha512
4e8b41f43c63ba0701e56dfa72b09dbc8ab8f9082073c5619374c5b425323fa7888e9da03176fe70278143214a6158deddfffaec143197062e3e9b2bf6f7832c
ripemd-160
f1ea1f1e9487a880f366b4aac8b17d5a4d9e932b
Diameter
43839818
Circumference
137726850.16351
Area
1.5094800112204E+15
Volume
4.4116885977694E+22
Surface area
6.0379200448817E+15
Circumference
137726850.16351
Perimeter
87679636
Area
480482410568281
Diagonal
30999432.593784
Surface area
2882894463409686
Volume
1.0532130715757E+22
Space diagonal
37966396.085286
Perimeter
65759727
Area
2.0805498681186E+14
Altitude
18983198.042643
Surface area
2.0805498681186E+14
Volume
1.2412235082425E+21
Height
10333144.197928