21921279 is an odd 8-digits composite number following 21921278
and preceding 21921280 . In scientific notation, it is written as 2.1921279 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 13381632 positive integers (up to 21921279) that are relatively prime to 21921279.
21921279 has 16 divisors, whose sum is 31786848
The reverse of 21921279 is 97212912
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred twenty-one thousand two hundred seventy-nine
Scientific notation
2.1921279 × 10^7
Engineering notation
2.1921279 × 10^6
Prime Factorization
3 × 17 × 37 × 11617
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21921279
Product of the distinct prime numbers
The prime factorization of 21921279 is 3 × 17 × 37 × 11617.
Since it has a total of 4 prime factors.
9 , 8 , 34 , 41 , 642 , 364 , 6319 , 963 , 45554 , 12414 , 408170 , 615877 , 1170172 , 953040 , 38024800 , 95598429 , 893680465 , 487319880 , 258569236 , 6103296505
n×2
43842558
n×3
65763837
n×4
87685116
n×5
109606395
n÷2
10960639.5
n÷3
7307093
n÷3
5480319.75
n÷5
4384255.8
n2
480542472995841
n3
1.0534105621892E+22
n4
2.3092106835296E+29
n5
5.0620851663433E+36
2 √n
4682.016552726
3 √n
279.86932252502
4 √n
68.425262533117
5 √n
29.388212935004
1 , 3 , 17 , 37 , 51 , 111 , 629 , 1887 , 11617 , 34851 , 197489 , 429829 , 592467 , 1289487 , 7307093 , 21921279
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
-21921278
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 21921279 can be divided by 16 positive divisors.
The sum of these divisors (counting 21921279) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011100111110111111111
3
Ternary
1112020201100020
4
Quaternary
1103213313333
5
Quinary
21102440104
6
Senary
2101503223
8
Octal
123476777
10
Decimal
21921279
12
Duodecimal
7411b13
16
Hexadecimal
14e7dff
20
Vigesimal
6h033j
36
Base36
d1ukf
md5
eb86636a079421482d7a5757321b1901
sha1
3eb7d834cf53a2c9535d9442c9c711fd31c317cd
sha256
cce3d5345fad21bee2e426f6cb0888d35254ffe84527dbf7e402aa8ba2040037
sha512
289a8f23628efee4aace8ef166fe4c98ef50bfb5004a6248b50c32b8eec8c736237d467825d4244660fb3b7034af8d17cdc595ac4e9fd7728d1f711818763967
ripemd-160
d0226830e1b4d81420892486f78861575e85801c
Diameter
43842558
Circumference
137735458.12738
Area
1.5096687029016E+15
Volume
4.4125158445166E+22
Surface area
6.0386748116064E+15
Circumference
137735458.12738
Perimeter
87685116
Area
480542472995841
Diagonal
31001370.066365
Surface area
2883254837975046
Volume
1.0534105621892E+22
Space diagonal
37968768.994893
Perimeter
65763837
Area
2.080809946059E+14
Altitude
18984384.497446
Surface area
2.080809946059E+14
Volume
1.2414562531625E+21
Height
10333790.022122