21919911 is an odd 8-digits composite number following 21919910
and preceding 21919912 . In scientific notation, it is written as 2.1919911 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 13023360 positive integers (up to 21919911) that are relatively prime to 21919911.
21919911 has 16 divisors, whose sum is 32561760
The reverse of 21919911 is 11991912
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred nineteen thousand nine hundred eleven
Scientific notation
2.1919911 × 10^7
Engineering notation
2.1919911 × 10^6
Prime Factorization
3 × 29 × 13 × 19381
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21919911
Product of the distinct prime numbers
The prime factorization of 21919911 is 3 × 29 × 13 × 19381.
Since it has a total of 4 prime factors.
7 , 5 , 90 , 14 , 201 , 148 , 4279 , 5807 , 33376 , 24208 , 767423 , 776468 , 5368141 , 4602936 , 80343649 , 49721316 , 262944760 , 448849148 , 1397300104 , 4463689796
n×2
43839822
n×3
65759733
n×4
87679644
n×5
109599555
n÷2
10959955.5
n÷3
7306637
n÷3
5479977.75
n÷5
4383982.2
n2
480482498247921
n3
1.0532133598652E+22
n4
2.3086343112256E+29
n5
5.0605058633612E+36
2 √n
4681.8704595493
3 √n
279.86350064456
4 √n
68.42419498649
5 √n
29.387846130869
1 , 3 , 13 , 29 , 39 , 87 , 377 , 1131 , 19381 , 58143 , 251953 , 562049 , 755859 , 1686147 , 7306637 , 21919911
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
-21919910
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 21919911 can be divided by 16 positive divisors.
The sum of these divisors (counting 21919911) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011100111100010100111
3
Ternary
1112020122110120
4
Quaternary
1103213202213
5
Quinary
21102414121
6
Senary
2101453023
8
Octal
123474247
10
Decimal
21919911
12
Duodecimal
7411173
16
Hexadecimal
14e78a7
20
Vigesimal
6gjjfb
36
Base36
d1tif
md5
87d4b6fc1e4e08027e11ef4c9429bd8d
sha1
115bff98cfdf978f2417b837d81925fde4544fe3
sha256
dba0ac16b5b08302410603dd4f16a86fdfdbd99ad5882e7dcae4ae24da4b625c
sha512
fd7542c703f2198b22e386272a290e0cac28fa941f358c86664610b994e4109b4a99aaf4878670af3b682f7afb25ca8918122aca0124f8b30061896d01c985fc
ripemd-160
e1e4069cceaac899262fd85a45a98370f281e13c
Diameter
43839822
Circumference
137726862.72988
Area
1.5094802866741E+15
Volume
4.4116898053535E+22
Surface area
6.0379211466966E+15
Circumference
137726862.72988
Perimeter
87679644
Area
480482498247921
Diagonal
30999435.422211
Surface area
2882894989487526
Volume
1.0532133598652E+22
Space diagonal
37966399.549388
Perimeter
65759733
Area
2.0805502477826E+14
Altitude
18983199.774694
Surface area
2.0805502477826E+14
Volume
1.2412238479949E+21
Height
10333145.140737