21909475 is an odd 8-digits composite number following 21909474
and preceding 21909476 . In scientific notation, it is written as 2.1909475 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 15023520 positive integers (up to 21909475) that are relatively prime to 21909475.
21909475 has 12 divisors, whose sum is 31049104
The reverse of 21909475 is 57490912
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million nine hundred nine thousand four hundred seventy-five
Scientific notation
2.1909475 × 10^7
Engineering notation
2.1909475 × 10^6
Prime Factorization
7 × 5 × 5 × 125197
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4381895
Product of the distinct prime numbers
The prime factorization of 21909475 is 7 × 5 × 5 × 125197.
Since it has a total of 4 prime factors.
8 , 10 , 86 , 20 , 163 , 518 , 8025 , 8350 , 7316 , 39471 , 210046 , 601194 , 6385481 , 6996157 , 20186475 , 54720580 , 805407843 , 139602989 , 8059043333 , 285505106
n×2
43818950
n×3
65728425
n×4
87637900
n×5
109547375
n÷2
10954737.5
n÷3
7303158.3333333
n÷3
5477368.75
n÷5
4381895
n2
480025094775625
n3
1.0517097813359E+22
n4
2.3042409161435E+29
n5
5.0484708746223E+36
2 √n
4680.7558150367
3 √n
279.81907955301
4 √n
68.416049396591
5 √n
29.385047305775
1 , 5 , 7 , 25 , 35 , 175 , 125197 , 625985 , 876379 , 3129925 , 4381895 , 21909475
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
-21909474
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 21909475 can be divided by 12 positive divisors.
The sum of these divisors (counting 21909475) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011100100111111100011
3
Ternary
1112020010011001
4
Quaternary
1103210333203
5
Quinary
21102100400
6
Senary
2101332431
8
Octal
123447743
10
Decimal
21909475
12
Duodecimal
7407117
16
Hexadecimal
14e4fe3
20
Vigesimal
6giddf
36
Base36
d1lgj
md5
9a89d40ccb8d70c4cc52efefb7e00fd9
sha1
4f36165f9bb89e3129a51284f848caaf42995e71
sha256
ed41f0b4fa1390a31cb57ef7ee0da937fba3ee6fa2ac50f6b31cd6c85d197dda
sha512
fcc8f69dcc583cc58dd68a7a9cf0be434e03912c16505cdf27b77bb3d2cb1b1d6d18b1218e19fbbe25f343ec2cbb121ba992a39a45990a2c8e9d29f1cc5e23d3
ripemd-160
278d75f0a6afcf750f8b8f32b0b266685402e391
Diameter
43818950
Circumference
137661291.40802
Area
1.5080433112858E+15
Volume
4.4053916303379E+22
Surface area
6.0321732451434E+15
Circumference
137661291.40802
Perimeter
87637900
Area
480025094775625
Diagonal
30984676.689474
Surface area
2880150568653750
Volume
1.0517097813359E+22
Space diagonal
37948323.86716
Perimeter
65728425
Area
2.0785696326486E+14
Altitude
18974161.93358
Surface area
2.0785696326486E+14
Volume
1.2394518637047E+21
Height
10328225.563158