18389949 is an odd 8-digits composite number following 18389948
and preceding 18389950 . In scientific notation, it is written as 1.8389949 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 11726880 positive integers (up to 18389949) that are relatively prime to 18389949.
18389949 has 8 divisors, whose sum is 25586112
The reverse of 18389949 is 94998381
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighteen million three hundred eighty-nine thousand nine hundred forty-nine
Scientific notation
1.8389949 × 10^7
Engineering notation
1.8389949 × 10^6
Prime Factorization
23 × 3 × 266521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18389949
Product of the distinct prime numbers
The prime factorization of 18389949 is 23 × 3 × 266521.
Since it has a total of 3 prime factors.
4 , 4 , 47 , 89 , 450 , 702 , 4487 , 4166 , 34115 , 80400 , 497141 , 143213 , 2220089 , 6739543 , 20784611 , 17346157 , 863137910 , 956652062 , 5157791482 , 6124927956
n×2
36779898
n×3
55169847
n×4
73559796
n×5
91949745
n÷2
9194974.5
n÷3
6129983
n÷3
4597487.25
n÷5
3677989.8
n2
338190224222601
n3
6.2193009757522E+21
n4
1.1437262775973E+29
n5
2.1033067914975E+36
2 √n
4288.35038214
3 √n
263.9531453808
4 √n
65.485497494789
5 √n
28.373708650916
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
-18389948
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 18389949 can be divided by 8 positive divisors.
The sum of these divisors (counting 18389949) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001001101110111101
3
Ternary
1021121022021020
4
Quaternary
1012021232331
5
Quinary
14201434244
6
Senary
1454054353
8
Octal
106115675
10
Decimal
18389949
12
Duodecimal
61aa3b9
16
Hexadecimal
1189bbd
20
Vigesimal
5eieh9
36
Base36
ay5rx
md5
fef0a1b20919fde2c2c35d7508cabeae
sha1
d2115c0555bd56d856fc40e98c63af268610b3a5
sha256
0db4e9b738a05e29d43cff4414bda14b5c3afbd014ca1c6c70ab84f43131e8a4
sha512
22b6c46fc9aa239e8443d3a85bdc090aa7b5aa32c88dfbcaa99b00d0d89094540d44f0ce01013e3c4b66d7485818799ab9591f5430f9e6495fe4dc417197d394
ripemd-160
0a197ba7cc3b90b21e325d2f1ce4cb58854aa32c
Diameter
36779898
Circumference
115547457.35658
Area
1.0624559239336E+15
Volume
2.6051347007849E+22
Surface area
4.2498236957344E+15
Circumference
115547457.35658
Perimeter
73559796
Area
338190224222601
Diagonal
26007315.28715
Surface area
2029141345335606
Volume
6.2193009757522E+21
Space diagonal
31852326.0166
Perimeter
55169847
Area
1.4644066274416E+14
Altitude
15926163.0083
Surface area
1.4644066274416E+14
Volume
7.3295164903242E+20
Height
8669105.0957165