18389911 is an odd 8-digits composite number following 18389910
and preceding 18389912 . In scientific notation, it is written as 1.8389911 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 18249400 positive integers (up to 18389911) that are relatively prime to 18389911.
18389911 has 4 divisors, whose sum is 18530424
The reverse of 18389911 is 11998381
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighteen million three hundred eighty-nine thousand nine hundred eleven
Scientific notation
1.8389911 × 10^7
Engineering notation
1.8389911 × 10^6
Prime Factorization
131 × 140381
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18389911
Product of the distinct prime numbers
The prime factorization of 18389911 is 131 × 140381.
Since it has a total of 2 prime factors.
6 , 2 , 87 , 25 , 443 , 579 , 1421 , 4585 , 6617 , 98899 , 811810 , 569408 , 8751991 , 4212670 , 88360501 , 78200463 , 461763217 , 169323832 , 8768863193 , 6369358115
n×2
36779822
n×3
55169733
n×4
73559644
n×5
91949555
n÷2
9194955.5
n÷3
6129970.3333333
n÷3
4597477.75
n÷5
3677982.2
n2
338188826587921
n3
6.2192624221463E+21
n4
1.1437168242891E+29
n5
2.103285060788E+36
2 √n
4288.3459515296
3 √n
263.95296357449
4 √n
65.485463665836
5 √n
28.373696924925
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
-18389910
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 18389911 can be divided by 4 positive divisors.
The sum of these divisors (counting 18389911) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001001101110010111
3
Ternary
1021121022012211
4
Quaternary
1012021232113
5
Quinary
14201434121
6
Senary
1454054251
8
Octal
106115627
10
Decimal
18389911
12
Duodecimal
61aa387
16
Hexadecimal
1189b97
20
Vigesimal
5eiefb
36
Base36
ay5qv
md5
f56a53c8cae006018de3e3711aa65dd0
sha1
a1064223c2431d4556fdb1dde3f439dcb68ada1f
sha256
d77be0c818ee415a1027945f827662e9b43bb5478918a53f2cc35e7fe9887a36
sha512
673326322e9242c8376a6dde43e4e5bc1c786322b47d1765c87e16ed461b9397bdd19234551e799ef152529cb912b7b59827f846ce2ed7c1e18815952587d259
ripemd-160
56eb70c9bb5a726a3b35ce976cb85cb90f880070
Diameter
36779822
Circumference
115547218.59554
Area
1.0624515331348E+15
Volume
2.6051185514883E+22
Surface area
4.2498061325391E+15
Circumference
115547218.59554
Perimeter
73559644
Area
338188826587921
Diagonal
26007261.547034
Surface area
2029132959527526
Volume
6.2192624221463E+21
Space diagonal
31852260.19867
Perimeter
55169733
Area
1.4644005755059E+14
Altitude
15926130.099335
Surface area
1.4644005755059E+14
Volume
7.3294710544639E+20
Height
8669087.1823447