21909899 is an odd 8-digits composite number following 21909898
and preceding 21909900 . In scientific notation, it is written as 2.1909899 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 19797160 positive integers (up to 21909899) that are relatively prime to 21909899.
21909899 has 8 divisors, whose sum is 24046848
The reverse of 21909899 is 99890912
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million nine hundred nine thousand eight hundred ninety-nine
Scientific notation
2.1909899 × 10^7
Engineering notation
2.1909899 × 10^6
Prime Factorization
11 × 167 × 11927
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21909899
Product of the distinct prime numbers
The prime factorization of 21909899 is 11 × 167 × 11927.
Since it has a total of 3 prime factors.
2 , 1 , 47 , 94 , 187 , 139 , 961 , 6674 , 4098 , 92673 , 30137 , 137522 , 2135659 , 4515714 , 35339493 , 77141101 , 77706315 , 770316322 , 6043054358 , 534141836
n×2
43819798
n×3
65729697
n×4
87639596
n×5
109549495
n÷2
10954949.5
n÷3
7303299.6666667
n÷3
5477474.75
n÷5
4381979.8
n2
480043674190201
n3
1.0517708417096E+22
n4
2.3044192913003E+29
n5
5.0489593926041E+36
2 √n
4680.8011066483
3 √n
279.82088459435
4 √n
68.416380397156
5 √n
29.385161038885
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21909898
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21909899 can be divided by 8 positive divisors.
The sum of these divisors (counting 21909899) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100101000110001011
3
Ternary
1112020010201202
4
Quaternary
1103211012023
5
Quinary
21102104044
6
Senary
2101334415
8
Octal
123450613
10
Decimal
21909899
12
Duodecimal
740740b
16
Hexadecimal
14e518b
20
Vigesimal
6gieej
36
Base36
d1lsb
md5
58dc54136578b0129a37458da3b8369d
sha1
9406af308135e0352b59d405e02ca53b80358d08
sha256
6ec6c2109418e9afc129dc1bce5b10dd33730a8662a6a23b94d4fb1ff401f5a8
sha512
f97b2b4e196ec25f09788a9a86cd7c1bb338f0c355d1b1ab1fa640144154a3f7b41f776e77ecafc6b8b02050e5ba2d99b6e64d660ea5fb5dabf7664968ef8bd9
ripemd-160
e2d1a59dfb23f25e35b4b159c23c15e7e5415de8
Diameter
43819798
Circumference
137663955.47859
Area
1.5081016802382E+15
Volume
4.4056473994332E+22
Surface area
6.0324067209528E+15
Circumference
137663955.47859
Perimeter
87639596
Area
480043674190201
Diagonal
30985276.316025
Surface area
2880262045141206
Volume
1.0517708417096E+22
Space diagonal
37949058.256703
Perimeter
65729697
Area
2.0786500838737E+14
Altitude
18974529.128351
Surface area
2.0786500838737E+14
Volume
1.2395238240453E+21
Height
10328425.438675