18389939 is an odd 8-digits composite number following 18389938
and preceding 18389940 . In scientific notation, it is written as 1.8389939 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 17773056 positive integers (up to 18389939) that are relatively prime to 18389939.
18389939 has 8 divisors, whose sum is 19015920
The reverse of 18389939 is 93998381
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighteen million three hundred eighty-nine thousand nine hundred thirty-nine
Scientific notation
1.8389939 × 10^7
Engineering notation
1.8389939 × 10^6
Prime Factorization
43 × 97 × 4409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18389939
Product of the distinct prime numbers
The prime factorization of 18389939 is 43 × 97 × 4409.
Since it has a total of 3 prime factors.
1 , 5 , 78 , 86 , 455 , 609 , 6295 , 2677 , 45179 , 7611 , 473430 , 456597 , 8617165 , 1282833 , 59636206 , 95984657 , 798245487 , 351732066 , 3137957791 , 768376206
n×2
36779878
n×3
55169817
n×4
73559756
n×5
91949695
n÷2
9194969.5
n÷3
6129979.6666667
n÷3
4597484.75
n÷5
3677987.8
n2
338189856423721
n3
6.219290830051E+21
n4
1.143723789879E+29
n5
2.1033010728723E+36
2 √n
4288.3492161903
3 √n
263.95309753706
4 √n
65.485488592438
5 √n
28.373705565131
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
-18389938
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 18389939 can be divided by 8 positive divisors.
The sum of these divisors (counting 18389939) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001101110110011
3
Ternary
1021121022020212
4
Quaternary
1012021232303
5
Quinary
14201434224
6
Senary
1454054335
8
Octal
106115663
10
Decimal
18389939
12
Duodecimal
61aa3ab
16
Hexadecimal
1189bb3
20
Vigesimal
5eiegj
36
Base36
ay5rn
md5
ef4c00f2c81e6838223be78b92ccbc95
sha1
552820749ebe7863c0fa23c50b5af61c8e442974
sha256
b55f06e5cefe2a15a1e00fce0f96475889339e4d34e2855afb0da62c5441415f
sha512
ef11d493899a09deaeaefb7526a3dac44b9771d90890787ed453acddb08c8dfa1bd48c631b2bc56dc5bab5ec696d63d67684f7ed10f7d40f543fcd0d2b48c50c
ripemd-160
fb0911d4c3519ae949cdb2444cc2b065a27225d0
Diameter
36779878
Circumference
115547394.52473
Area
1.0624547684593E+15
Volume
2.6051304509635E+22
Surface area
4.2498190738374E+15
Circumference
115547394.52473
Perimeter
73559756
Area
338189856423721
Diagonal
26007301.145014
Surface area
2029139138542326
Volume
6.219290830051E+21
Space diagonal
31852308.696092
Perimeter
55169817
Area
1.4644050348258E+14
Altitude
15926154.348046
Surface area
1.4644050348258E+14
Volume
7.3295045335006E+20
Height
8669100.3816713