21931473 is an odd 8-digits composite number following 21931472
and preceding 21931474 . In scientific notation, it is written as 2.1931473 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14620980 positive integers (up to 21931473) that are relatively prime to 21931473.
21931473 has 4 divisors, whose sum is 29241968
The reverse of 21931473 is 37413912
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million nine hundred thirty-one thousand four hundred seventy-three
Scientific notation
2.1931473 × 10^7
Engineering notation
2.1931473 × 10^6
Prime Factorization
3 × 7310491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21931473
Product of the distinct prime numbers
The prime factorization of 21931473 is 3 × 7310491.
Since it has a total of 2 prime factors.
8 , 7 , 82 , 57 , 949 , 994 , 9530 , 8850 , 50362 , 48404 , 720980 , 870970 , 9891327 , 8242103 , 32525897 , 83667599 , 126773310 , 415214261 , 3835235950 , 2535226828
n×2
43862946
n×3
65794419
n×4
87725892
n×5
109657365
n÷2
10965736.5
n÷3
7310491
n÷3
5482868.25
n÷5
4386294.6
n2
480989507949729
n3
1.0548808406883E+22
n4
2.3135090675772E+29
n5
5.0738661650825E+36
2 √n
4683.10505968
3 √n
279.9126981229
4 √n
68.433216055363
5 √n
29.390945692818
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
-21931472
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 21931473 can be divided by 4 positive divisors.
The sum of these divisors (counting 21931473) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011101010010111010001
3
Ternary
1112021020022210
4
Quaternary
1103222113101
5
Quinary
21103301343
6
Senary
2102022333
8
Octal
123522721
10
Decimal
21931473
12
Duodecimal
74179a9
16
Hexadecimal
14ea5d1
20
Vigesimal
6h18dd
36
Base36
d22fl
md5
bd421dfdb52aa54f528ac64e42307881
sha1
fd9c41f8dd964b38efcd70ed48501174930c8343
sha256
27431841bc1e66e42b0e687430108130a49e187a73048c925e1fd19f856d876f
sha512
eca2cac6a5f2dd1c58f9a60119a34c079e3d3ac1e3d7b1985bb5231ab4b9d1d0d57d67f3ae5e45f44e73c9aa3a9d31082aa855acbddc63ecdbbbe168ad82ba05
ripemd-160
36a908e423fa60b87f941f4fff126147ed864828
Diameter
43862946
Circumference
137799508.91841
Area
1.5110731046286E+15
Volume
4.4186745326919E+22
Surface area
6.0442924185146E+15
Circumference
137799508.91841
Perimeter
87725892
Area
480989507949729
Diagonal
31015786.559419
Surface area
2885937047698374
Volume
1.0548808406883E+22
Space diagonal
37986425.520825
Perimeter
65794419
Area
2.0827456641912E+14
Altitude
18993212.760413
Surface area
2.0827456641912E+14
Volume
1.2431889929907E+21
Height
10338595.519806