21909723 is an odd 8-digits composite number following 21909722
and preceding 21909724 . In scientific notation, it is written as 2.1909723 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 13027040 positive integers (up to 21909723) that are relatively prime to 21909723.
21909723 has 16 divisors, whose sum is 32472576
The reverse of 21909723 is 32790912
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred nine thousand seven hundred twenty-three
Scientific notation
2.1909723 × 10^7
Engineering notation
2.1909723 × 10^6
Prime Factorization
3 × 11 × 53 × 12527
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21909723
Product of the distinct prime numbers
The prime factorization of 21909723 is 3 × 11 × 53 × 12527.
Since it has a total of 4 prime factors.
6 , 4 , 80 , 98 , 853 , 208 , 2475 , 8341 , 22255 , 588 , 226802 , 514754 , 3528449 , 946181 , 75124398 , 40248897 , 507563718 , 61121769 , 8023870344 , 9435371574
n×2
43819446
n×3
65729169
n×4
87638892
n×5
109548615
n÷2
10954861.5
n÷3
7303241
n÷3
5477430.75
n÷5
4381944.6
n2
480035961936729
n3
1.0517454956072E+22
n4
2.3043452475252E+29
n5
5.0487566069644E+36
2 √n
4680.7823064099
3 √n
279.82013533473
4 √n
68.416243001278
5 √n
29.385113829128
1 , 3 , 11 , 33 , 53 , 159 , 583 , 1749 , 12527 , 37581 , 137797 , 413391 , 663931 , 1991793 , 7303241 , 21909723
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
-21909722
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 21909723 can be divided by 16 positive divisors.
The sum of these divisors (counting 21909723) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011100101000011011011
3
Ternary
1112020010111020
4
Quaternary
1103211003123
5
Quinary
21102102343
6
Senary
2101333523
8
Octal
123450333
10
Decimal
21909723
12
Duodecimal
74072a3
16
Hexadecimal
14e50db
20
Vigesimal
6gie63
36
Base36
d1lnf
md5
3696d6a131f7a9671131f8205d8cb664
sha1
3ef55848405c5f6ec5cf42f15a03a6fedb1f7ed8
sha256
b18fdfab9e1e85036b34427f4be9c7a680cab8e08b7d3b431b62e8f2abc7c997
sha512
474e43debd65ca07bf9e7c2157e05f4e74edc5f167de0e5678ba7b16705c7e3b0fdd570d72fed5f46bde73b7721b99b5dc9c863211e5a2d170c8929000de081f
ripemd-160
ae8dbf52e1b3d0c0e60a1437aee6fb8c5be9892a
Diameter
43819446
Circumference
137662849.63797
Area
1.5080774514793E+15
Volume
4.4055412299278E+22
Surface area
6.0323098059174E+15
Circumference
137662849.63797
Perimeter
87638892
Area
480035961936729
Diagonal
30985027.414438
Surface area
2880215771620374
Volume
1.0517454956072E+22
Space diagonal
37948753.41576
Perimeter
65729169
Area
2.0786166888365E+14
Altitude
18974376.70788
Surface area
2.0786166888365E+14
Volume
1.2394939533771E+21
Height
10328342.471479