21909425 is an odd 8-digits composite number following 21909424
and preceding 21909426 . In scientific notation, it is written as 2.1909425 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 17352000 positive integers (up to 21909425) that are relatively prime to 21909425.
21909425 has 12 divisors, whose sum is 27439836
The reverse of 21909425 is 52490912
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million nine hundred nine thousand four hundred twenty-five
Scientific notation
2.1909425 × 10^7
Engineering notation
2.1909425 × 10^6
Prime Factorization
5 × 5 × 101 × 8677
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4381885
Product of the distinct prime numbers
The prime factorization of 21909425 is 5 × 5 × 101 × 8677.
Since it has a total of 4 prime factors.
4 , 8 , 10 , 77 , 29 , 455 , 9643 , 1482 , 21520 , 98217 , 268062 , 59946 , 4532060 , 4499741 , 4971451 , 52165810 , 67913844 , 876066723 , 9099612273 , 4708713928
n×2
43818850
n×3
65728275
n×4
87637700
n×5
109547125
n÷2
10954712.5
n÷3
7303141.6666667
n÷3
5477356.25
n÷5
4381885
n2
480022903830625
n3
1.0517025809759E+22
n4
2.3042198820199E+29
n5
5.0484132688623E+36
2 √n
4680.7504740159
3 √n
279.81886669282
4 √n
68.416010363188
5 √n
29.385033893736
1 , 5 , 25 , 101 , 505 , 2525 , 8677 , 43385 , 216925 , 876377 , 4381885 , 21909425
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21909424
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21909425 can be divided by 12 positive divisors.
The sum of these divisors (counting 21909425) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011100100111110110001
3
Ternary
1112020010002012
4
Quaternary
1103210332301
5
Quinary
21102100200
6
Senary
2101332305
8
Octal
123447661
10
Decimal
21909425
12
Duodecimal
7407095
16
Hexadecimal
14e4fb1
20
Vigesimal
6gidb5
36
Base36
d1lf5
md5
72a940ecb0fe3094dd46e1d267a2d27f
sha1
873f6128cfe9e2065d9d3c0616d11acfad3ca489
sha256
53ca2dda02dbe8ba2951af4dc0ebda2598256785b3ec768c6227623eb88460c3
sha512
d93586f15efb2645b3fc6e520e5e798cb2dbb406343654cb46e0e7827d5ccd4896abc7f93482c0905131cc1f9a9bf8b888a6187e5b8a38afb0242d2068c4367b
ripemd-160
00cdfe46e54056b65ed19256d0e0de92f006fe50
Diameter
43818850
Circumference
137660977.24875
Area
1.5080364282291E+15
Volume
4.4053614695405E+22
Surface area
6.0321457129165E+15
Circumference
137660977.24875
Perimeter
87637700
Area
480022903830625
Diagonal
30984605.978796
Surface area
2880137422983750
Volume
1.0517025809759E+22
Space diagonal
37948237.26462
Perimeter
65728275
Area
2.0785601455785E+14
Altitude
18974118.63231
Surface area
2.0785601455785E+14
Volume
1.2394433779991E+21
Height
10328201.992932