21746721 is an odd 8-digits composite number following 21746720
and preceding 21746722 . In scientific notation, it is written as 2.1746721 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 14348160 positive integers (up to 21746721) that are relatively prime to 21746721.
21746721 has 8 divisors, whose sum is 29294944
The reverse of 21746721 is 12764712
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million seven hundred forty-six thousand seven hundred twenty-one
Scientific notation
2.1746721 × 10^7
Engineering notation
2.1746721 × 10^6
Prime Factorization
3 × 97 × 74731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21746721
Product of the distinct prime numbers
The prime factorization of 21746721 is 3 × 97 × 74731.
Since it has a total of 3 prime factors.
5 , 2 , 87 , 26 , 486 , 322 , 2969 , 8595 , 94362 , 19095 , 496613 , 408252 , 4789391 , 1485248 , 31528401 , 46328833 , 759211364 , 414832868 , 696262035 , 7824945198
n×2
43493442
n×3
65240163
n×4
86986884
n×5
108733605
n÷2
10873360.5
n÷3
7248907
n÷3
5436680.25
n÷5
4349344.2
n2
472919874251841
n3
1.028445656071E+22
n4
2.2365320746238E+29
n5
4.8637239034394E+36
2 √n
4663.3379675936
3 √n
279.12448036576
4 √n
68.288637177744
5 √n
29.341259780662
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21746720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21746721 can be divided by 8 positive divisors.
The sum of these divisors (counting 21746721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010111101010000100001
3
Ternary
1111220211220010
4
Quaternary
1102331100201
5
Quinary
21031343341
6
Senary
2054035133
8
Octal
122752041
10
Decimal
21746721
12
Duodecimal
7348aa9
16
Hexadecimal
14bd421
20
Vigesimal
6fi6g1
36
Base36
cy3vl
md5
fc2479c4952b64ef55839f3a6d8fc292
sha1
98f9687f1ccc3956fd6b965819a17b90b41823df
sha256
76c01960ed27410dc662a017ab8a8d586b6e73dadf973f23c90794b7209d0f78
sha512
5ed149de6f41b94d54c308b3d746dd39c82c104beee61ba1eaed2eeacf12853b6dbd2b33a2c9cc995d2f3b636d900db9fca0ba4b71c0233a84b9a8a8b1c02e83
ripemd-160
0b58fc4848ff1ebefe43e72a156fbe1e5346930f
Diameter
43493442
Circumference
136638677.86653
Area
1.4857216026862E+15
Volume
4.3079430903053E+22
Surface area
5.9428864107448E+15
Circumference
136638677.86653
Perimeter
86986884
Area
472919874251841
Diagonal
30754507.775344
Surface area
2837519245511046
Volume
1.028445656071E+22
Space diagonal
37666425.670025
Perimeter
65240163
Area
2.0478031252832E+14
Altitude
18833212.835013
Surface area
2.0478031252832E+14
Volume
1.2120348291494E+21
Height
10251502.591781