21909461 is an odd 8-digits composite number following 21909460
and preceding 21909462 . In scientific notation, it is written as 2.1909461 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18779532 positive integers (up to 21909461) that are relatively prime to 21909461.
21909461 has 4 divisors, whose sum is 25039392
The reverse of 21909461 is 16490912
Previous prime number is 7
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 sixty-one
Scientific notation
2.1909461 × 10^7
Engineering notation
2.1909461 × 10^6
Prime Factorization
7 × 3129923
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21909461
Product of the distinct prime numbers
The prime factorization of 21909461 is 7 × 3129923.
Since it has a total of 2 prime factors.
4 , 7 , 60 , 46 , 652 , 256 , 311 , 438 , 11952 , 59829 , 187793 , 553215 , 8528655 , 6909202 , 64026771 , 24975952 , 93130877 , 920413573 , 2068547908 , 6688074264
n×2
43818922
n×3
65728383
n×4
87637844
n×5
109547305
n÷2
10954730.5
n÷3
7303153.6666667
n÷3
5477365.25
n÷5
4381892.2
n2
480024481310521
n3
1.0517077652318E+22
n4
2.3042350265743E+29
n5
5.0484547449565E+36
2 √n
4680.7543195515
3 √n
279.81901995219
4 √n
68.416038467245
5 √n
29.385043550407
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21909460
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21909461 can be divided by 4 positive divisors.
The sum of these divisors (counting 21909461) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100100111111010101
3
Ternary
1112020010010112
4
Quaternary
1103210333111
5
Quinary
21102100321
6
Senary
2101332405
8
Octal
123447725
10
Decimal
21909461
12
Duodecimal
7407105
16
Hexadecimal
14e4fd5
20
Vigesimal
6gidd1
36
Base36
d1lg5
md5
83b59b9b2d5276ef8823246fd8d1e70a
sha1
bbb8fdf22ac16fc66c47edb4ee43333826b2975e
sha256
ed0044a62ac9c7a5d542e3030769e297543460757358e82bf4b820db4226b70b
sha512
4c6d5d3977e55fc4a46f2b97dfaba8408fb3592faba3f34e4b2964fca86f432c4174f5d402d151531b4a5774a26229b307d7489c59ceff236792feff0903c4c4
ripemd-160
de0aa2fbfd6146b01fa62e9a7db4cf81c8ffb72a
Diameter
43818922
Circumference
137661203.44342
Area
1.5080413840284E+15
Volume
4.4053831853008E+22
Surface area
6.0321655361135E+15
Circumference
137661203.44342
Perimeter
87637844
Area
480024481310521
Diagonal
30984656.890484
Surface area
2880146887863126
Volume
1.0517077652318E+22
Space diagonal
37948299.618449
Perimeter
65728383
Area
2.0785669762668E+14
Altitude
18974149.809224
Surface area
2.0785669762668E+14
Volume
1.2394494877033E+21
Height
10328218.963495