21441805 is an odd 8-digits composite number following 21441804
and preceding 21441806 . In scientific notation, it is written as 2.1441805 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 12988800 positive integers (up to 21441805) that are relatively prime to 21441805.
21441805 has 16 divisors, whose sum is 24123456
The reverse of 21441805 is 50814412
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred forty-one thousand eight hundred five
Scientific notation
2.1441805 × 10^7
Engineering notation
2.1441805 × 10^6
Prime Factorization
385 × 11 × 61 × 83
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21441805
Product of the distinct prime numbers
The prime factorization of 21441805 is 385 × 11 × 61 × 83.
Since it has a total of 4 prime factors.
5 , 9 , 29 , 79 , 914 , 137 , 5769 , 583 , 98284 , 13450 , 879980 , 133264 , 9330906 , 2265148 , 50193974 , 19256494 , 619225544 , 613918917 , 9972398932 , 9364813901
n×2
42883610
n×3
64325415
n×4
85767220
n×5
107209025
n÷2
10720902.5
n÷3
7147268.3333333
n÷3
5360451.25
n÷5
4288361
n2
459751001658025
n3
9.857891326106E+21
n4
2.1137098352556E+29
n5
4.5321754114132E+36
2 √n
4630.5296673275
3 √n
277.8137781193
4 √n
68.047995321886
5 √n
29.258514221339
1 , 11 , 61 , 83 , 385 , 671 , 913 , 4235 , 5063 , 23485 , 31955 , 55693 , 258335 , 351505 , 1949255 , 21441805
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
-21441804
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 21441805 can be divided by 16 positive divisors.
The sum of these divisors (counting 21441805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001110010110100001101
3
Ternary
1111100100121221
4
Quaternary
1101302310031
5
Quinary
20442114210
6
Senary
2043323341
8
Octal
121626415
10
Decimal
21441805
12
Duodecimal
7220551
16
Hexadecimal
1472d0d
20
Vigesimal
6e04a5
36
Base36
crklp
md5
95d207b5b53d3ee3889a4ad1e706dabb
sha1
663b2ed51d38caa425369a9ed7228134c847485e
sha256
7f7209c6098261f8f61d67928814fb500f4bb2c6977a8598a1b68e98ff5a9f58
sha512
471f11d712c3a249383dba2cba2078f86aad2f190a529cf39209eb4e428434b130dff8d891ef4e5fc69e25d726a0c45bb49cd612f85fde10f64a9d9bc57d13cf
ripemd-160
406fd8b1e784134dd6bf3eb9da615c431677c4d6
Diameter
42883610
Circumference
134722834.13541
Area
1.4443503692894E+15
Volume
4.1292638626642E+22
Surface area
5.7774014771576E+15
Circumference
134722834.13541
Perimeter
85767220
Area
459751001658025
Diagonal
30323291.432759
Surface area
2758506009948150
Volume
9.857891326106E+21
Space diagonal
37138295.665984
Perimeter
64325415
Area
1.990780234256E+14
Altitude
18569147.832992
Surface area
1.990780234256E+14
Volume
1.1617636341483E+21
Height
10107763.81092