21373945 is an odd 8-digits composite number following 21373944
and preceding 21373946 . In scientific notation, it is written as 2.1373945 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 17099152 positive integers (up to 21373945) that are relatively prime to 21373945.
21373945 has 4 divisors, whose sum is 25648740
The reverse of 21373945 is 54937312
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million three hundred seventy-three thousand nine hundred forty-five
Scientific notation
2.1373945 × 10^7
Engineering notation
2.1373945 × 10^6
Prime Factorization
5 × 4274789
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21373945
Product of the distinct prime numbers
The prime factorization of 21373945 is 5 × 4274789.
Since it has a total of 2 prime factors.
8 , 8 , 94 , 25 , 105 , 249 , 4327 , 9769 , 49034 , 17581 , 957809 , 234348 , 7413500 , 2222249 , 20531903 , 11768123 , 377264863 , 117933862 , 5619620182 , 3890979919
n×2
42747890
n×3
64121835
n×4
85495780
n×5
106869725
n÷2
10686972.5
n÷3
7124648.3333333
n÷3
5343486.25
n÷5
4274789
n2
456845524863025
n3
9.7645911219184E+21
n4
2.0870783358737E+29
n5
4.4609097561657E+36
2 √n
4623.196405086
3 √n
277.52038916281
4 √n
67.994090957126
5 √n
29.239970996484
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
-21373944
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 21373945 can be divided by 4 positive divisors.
The sum of these divisors (counting 21373945) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100010001111111001
3
Ternary
1111012220112121
4
Quaternary
1101202033321
5
Quinary
20432431240
6
Senary
2042041241
8
Octal
121421771
10
Decimal
21373945
12
Duodecimal
71a9221
16
Hexadecimal
14623f9
20
Vigesimal
6dbeh5
36
Base36
cq48p
md5
7428a1589ab649c3a2d508e1284b6f94
sha1
6bae3047556a5454e5f1f44cfc16bf4434d76ebd
sha256
1ab1376488dae627021844747704d8bd9f48f8f84b902491ebae628b0388076b
sha512
68f0670d5b73ebfac7814a626149f0c7ab0073243836b50b8c57bfecbbd2e9c31a85de492ef8bbc1d0ef3cbf675dc22e9396686d8e6f75a02659a1546e898a87
ripemd-160
96c3373c0aaf1f7625df3d924ef3f210007ed415
Diameter
42747890
Circumference
134296457.18046
Area
1.4352225447351E+15
Volume
4.0901823645236E+22
Surface area
5.7408901789402E+15
Circumference
134296457.18046
Perimeter
85495780
Area
456845524863025
Diagonal
30227322.900417
Surface area
2741073149178150
Volume
9.7645911219184E+21
Space diagonal
37020758.698183
Perimeter
64121835
Area
1.9781991506831E+14
Altitude
18510379.349091
Surface area
1.9781991506831E+14
Volume
1.1507680996371E+21
Height
10075774.300139