18385971 is an odd 8-digits composite number following 18385970
and preceding 18385972 . In scientific notation, it is written as 1.8385971 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 11834592 positive integers (up to 18385971) that are relatively prime to 18385971.
18385971 has 8 divisors, whose sum is 25360080
The reverse of 18385971 is 17958381
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million three hundred eighty-five thousand nine hundred seventy-one
Scientific notation
1.8385971 × 10^7
Engineering notation
1.8385971 × 10^6
Prime Factorization
3 × 29 × 211333
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18385971
Product of the distinct prime numbers
The prime factorization of 18385971 is 3 × 29 × 211333.
Since it has a total of 3 prime factors.
2 , 8 , 12 , 7 , 229 , 713 , 9890 , 1571 , 10986 , 55757 , 802194 , 409790 , 4644957 , 6335399 , 38241736 , 7605780 , 835223579 , 298189310 , 8160128668 , 6575448085
n×2
36771942
n×3
55157913
n×4
73543884
n×5
91929855
n÷2
9192985.5
n÷3
6128657
n÷3
4596492.75
n÷5
3677194.2
n2
338043929612841
n3
6.2152658865877E+21
n4
1.1427369834809E+29
n5
2.1010329038908E+36
2 √n
4287.8865423423
3 √n
263.93411177116
4 √n
65.481955853061
5 √n
28.372481019665
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
-18385970
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 18385971 can be divided by 8 positive divisors.
The sum of these divisors (counting 18385971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001000110000110011
3
Ternary
1021121002210220
4
Quaternary
1012020300303
5
Quinary
14201322341
6
Senary
1454024123
8
Octal
106106063
10
Decimal
18385971
12
Duodecimal
61a8043
16
Hexadecimal
1188c33
20
Vigesimal
5ei4ib
36
Base36
ay2pf
md5
a67b575672f42941aa0aba1732c6820c
sha1
6f5bb3498594f484fd9d1e8ac36b28e6899dfedd
sha256
07d69b0acdef9ed06780970b984e96a2c3be288a0784bf3c9a25726c22df4bf7
sha512
fa265cdd71deb7597752725272fed64bdd063513f38a53ecf9518dc6c93f2fe3bc020a9876e79f63a6ac6363e27b0fb752ef7090a8215b16f43802684b75ae40
ripemd-160
6639ce53a89539733e8c241e404e584385323edd
Diameter
36771942
Circumference
115522462.84543
Area
1.0619963258623E+15
Volume
2.6034444865882E+22
Surface area
4.2479853034493E+15
Circumference
115522462.84543
Perimeter
73543884
Area
338043929612841
Diagonal
26001689.545598
Surface area
2028263577677046
Volume
6.2152658865877E+21
Space diagonal
31845435.918488
Perimeter
55157913
Area
1.4637731531992E+14
Altitude
15922717.959244
Surface area
1.4637731531992E+14
Volume
7.3247610921393E+20
Height
8667229.8485328