18389913 is an odd 8-digits composite number following 18389912
and preceding 18389914 . In scientific notation, it is written as 1.8389913 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 11864400 positive integers (up to 18389913) that are relatively prime to 18389913.
18389913 has 4 divisors, whose sum is 18587748
The reverse of 18389913 is 31998381
Previous prime number is 93
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million three hundred eighty-nine thousand nine hundred thirteen
Scientific notation
1.8389913 × 10^7
Engineering notation
1.8389913 × 10^6
Prime Factorization
93 × 197741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18389913
Product of the distinct prime numbers
The prime factorization of 18389913 is 93 × 197741.
Since it has a total of 2 prime factors.
4 , 5 , 43 , 95 , 45 , 831 , 2042 , 6661 , 66288 , 52624 , 749645 , 19785 , 5735637 , 113167 , 39180782 , 31240416 , 412695755 , 958163404 , 8063519254 , 5749900349
n×2
36779826
n×3
55169739
n×4
73559652
n×5
91949565
n÷2
9194956.5
n÷3
6129971
n÷3
4597478.25
n÷5
3677982.6
n2
338188900147569
n3
6.2192644512795E+21
n4
1.1437173218302E+29
n5
2.1032862045051E+36
2 √n
4288.3461847197
3 √n
263.95297314325
4 √n
65.485465446309
5 √n
28.373697542083
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
-18389912
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 18389913 can be divided by 4 positive divisors.
The sum of these divisors (counting 18389913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001001101110011001
3
Ternary
1021121022012220
4
Quaternary
1012021232121
5
Quinary
14201434123
6
Senary
1454054253
8
Octal
106115631
10
Decimal
18389913
12
Duodecimal
61aa389
16
Hexadecimal
1189b99
20
Vigesimal
5eiefd
36
Base36
ay5qx
md5
129dead7f9e7852c44604929e2f88b0a
sha1
27a462f0c503d45df19bd295c7def64f0fa8e22e
sha256
aaf8bfb4f6db2f0f51253fa08633c1d886e7eac76003a925cf8b42f36728b250
sha512
8e35c2b0d741677044a0570f425bf06eab39237e99809e77330d7af69bab129cfecb48ecd337d55b6c39e3593ab44a3a96de18969d11d832b7eb2bbd9c3bac90
ripemd-160
6b0d77d827d902fe6b91b226a72a35556ce4bd4c
Diameter
36779826
Circumference
115547231.16191
Area
1.0624517642292E+15
Volume
2.6051194014496E+22
Surface area
4.2498070569169E+15
Circumference
115547231.16191
Perimeter
73559652
Area
338188900147569
Diagonal
26007264.375461
Surface area
2029133400885414
Volume
6.2192644512795E+21
Space diagonal
31852263.662771
Perimeter
55169739
Area
1.4644008940286E+14
Altitude
15926131.831386
Surface area
1.4644008940286E+14
Volume
7.3294734458203E+20
Height
8669088.1251538