21909154 is an even 8-digits composite number following 21909153
and preceding 21909155 . In scientific notation, it is written as 2.1909154 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10954576 positive integers (up to 21909154) that are relatively prime to 21909154.
21909154 has 4 divisors, whose sum is 32863734
The reverse of 21909154 is 45190912
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million nine hundred nine thousand one hundred fifty-four
Scientific notation
2.1909154 × 10^7
Engineering notation
2.1909154 × 10^6
Prime Factorization
2 × 10954577
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21909154
Product of the distinct prime numbers
The prime factorization of 21909154 is 2 × 10954577.
Since it has a total of 2 prime factors.
10 , 10 , 78 , 91 , 700 , 474 , 3455 , 3179 , 74969 , 54538 , 585990 , 762762 , 4313118 , 9640656 , 83805044 , 32405364 , 475597465 , 442344596 , 3929727519 , 1646302026
n×2
43818308
n×3
65727462
n×4
87636616
n×5
109545770
n÷2
10954577
n÷3
7303051.3333333
n÷3
5477288.5
n÷5
4381830.8
n2
480011028995716
n3
1.0516635555966E+22
n4
2.3041058795753E+29
n5
5.048101054792E+36
2 √n
4680.721525577
3 √n
279.81771298499
4 √n
68.415798800986
5 √n
29.384961200056
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
-21909153
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 21909154 can be divided by 4 positive divisors.
The sum of these divisors (counting 21909154) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100100111010100010
3
Ternary
1112020002201011
4
Quaternary
1103210322202
5
Quinary
21102043104
6
Senary
2101331134
8
Octal
123447242
10
Decimal
21909154
12
Duodecimal
7406aaa
16
Hexadecimal
14e4ea2
20
Vigesimal
6giche
36
Base36
d1l7m
md5
1f84a0c271921113f05b2462d84c3b27
sha1
a5ec043bec8bf723b55794896c975f57a5c025bb
sha256
ddda887698fb6a0954e0e50ca27392f9ffca6dcb31731b867e2dfe63043a1fd0
sha512
e4f01e1f10aa98fb3427225ad5e72b98d48957be089df0ce100c7197dbbb38a5d40eaabf620053097bbbba807b5ba785300571d45b29c25f5fb93896cf28d4b4
ripemd-160
6fbed9a23460562fcb677fb37f1e225834b65196
Diameter
43818308
Circumference
137659274.50553
Area
1.507999122335E+15
Volume
4.4051980004137E+22
Surface area
6.0319964893401E+15
Circumference
137659274.50553
Perimeter
87636616
Area
480011028995716
Diagonal
30984222.726921
Surface area
2880066173974296
Volume
1.0516635555966E+22
Space diagonal
37947767.878851
Perimeter
65727462
Area
2.078508726035E+14
Altitude
18973883.939425
Surface area
2.078508726035E+14
Volume
1.2393973861485E+21
Height
10328074.242307