21804420 is an even 8-digits composite number following 21804419
and preceding 21804421 . In scientific notation, it is written as 2.1804420 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 24 positive divisors.
There are 5285760 positive integers (up to 21804420) that are relatively prime to 21804420.
21804420 has 24 divisors, whose sum is 44403072
The reverse of 21804420 is 02440812
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million eight hundred four thousand four hundred twenty
Scientific notation
2.1804420 × 10^7
Engineering notation
2.1804420 × 10^6
Prime Factorization
2 × 2 × 15 × 11 × 33037
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10902210
Product of the distinct prime numbers
The prime factorization of 21804420 is 2 × 2 × 15 × 11 × 33037.
Since it has a total of 5 prime factors.
10 , 2 , 4 , 73 , 365 , 255 , 586 , 1294 , 87820 , 52408 , 997740 , 330427 , 12529 , 7522903 , 1834178 , 55593220 , 524626133 , 986221168 , 2061952546 , 5260523945
n×2
43608840
n×3
65413260
n×4
87217680
n×5
109022100
n÷2
10902210
n÷3
7268140
n÷3
5451105
n÷5
4360884
n2
475432731536400
n3
1.0366534960167E+22
n4
2.2603628221616E+29
n5
4.9285900326797E+36
2 √n
4669.520317977
3 √n
279.37112261834
4 √n
68.333888503268
5 √n
29.356813090776
1 , 2 , 4 , 11 , 15 , 22 , 30 , 44 , 60 , 165 , 330 , 660 , 33037 , 66074 , 132148 , 363407 , 495555 , 726814 , 991110 , 1453628 , 1982220 , 5451105 , 10902210 , 21804420
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21804419
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21804420 can be divided by 24 positive divisors.
The sum of these divisors (counting 21804420) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011001011010110000100
3
Ternary
1112000210001010
4
Quaternary
1103023112010
5
Quinary
21040220140
6
Senary
2055202220
8
Octal
123132604
10
Decimal
21804420
12
Duodecimal
7376370
16
Hexadecimal
14cb584
20
Vigesimal
6g5b10
36
Base36
czcec
md5
f9e61020e0a62ff5a7892791f788460f
sha1
9fdc808106a6a1f8b97ec6e9c3b5277c508c85e5
sha256
fb46ede3fe91c716b98fe147d19aeee41ad7d588861112fea4125523f6b65a09
sha512
3c82b266dd155686f3de58c8df321050dee195daaae9fd8e928c147b9b6c2bd0862931ccdc96b8d4ed5ac2166fe118fc3f357329ad61a76e34d389ae591ab19c
ripemd-160
e855220be6541cffb906d08fc9d185d985acc4c5
Diameter
43608840
Circumference
137001211.37557
Area
1.4936159766709E+15
Volume
4.3423240098723E+22
Surface area
5.9744639066835E+15
Circumference
137001211.37557
Perimeter
87217680
Area
475432731536400
Diagonal
30836106.483679
Surface area
2852596389218400
Volume
1.0366534960167E+22
Space diagonal
37766363.269571
Perimeter
65413260
Area
2.0586841165057E+14
Altitude
18883181.634785
Surface area
2.0586841165057E+14
Volume
1.2217078612902E+21
Height
10278702.161226