388655385 is an odd 9-digits composite number following 388655384
and preceding 388655386 . In scientific notation, it is written as 3.88655385 × 10^8.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 203136960 positive integers (up to 388655385) that are relatively prime to 388655385.
388655385 has 8 divisors, whose sum is 392101248
The reverse of 388655385 is 583556883
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 51
Digital Root 6
Name
three hundred eighty-eight million six hundred fifty-five thousand three hundred eighty-five
Scientific notation
3.88655385 × 10^8
Engineering notation
3.88655385 × 10^6
Prime Factorization
1245 × 131 × 2383
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
388655385
Product of the distinct prime numbers
The prime factorization of 388655385 is 1245 × 131 × 2383.
Since it has a total of 3 prime factors.
7 , 8 , 66 , 70 , 796 , 416 , 8634 , 6923 , 20003 , 37937 , 870068 , 120385 , 6172851 , 7916488 , 61014172 , 53853792 , 892544857 , 727474619 , 5431397279 , 3408446611
n×2
777310770
n×3
1165966155
n×4
1554621540
n×5
1943276925
n÷2
194327692.5
n÷3
129551795
n÷3
97163846.25
n÷5
77731077
n2
151053008289498225
n3
5.8707565092163E+25
n4
2.2817011313307E+34
n5
8.8679543165228E+42
2 √n
19714.344650533
3 √n
729.77373672007
4 √n
140.40777987894
5 √n
52.229147581576
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
-388655384
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 388655385 can be divided by 8 positive divisors.
The sum of these divisors (counting 388655385) is 1, the average is 0.125.
Base
System
Value
2
Binary
10111001010100110100100011001
3
Ternary
1000002022201221220
4
Quaternary
113022212210121
5
Quinary
1243443433020
6
Senary
102322122253
8
Octal
2712464431
10
Decimal
388655385
12
Duodecimal
aa1b0389
16
Hexadecimal
172a6919
20
Vigesimal
6191i95
36
Base36
6fe8ex
md5
b1eaa4a8f88f685d12d7304fe43bc319
sha1
c882d3b9715b6d59a4ff0c3f3c8afa401b7c1df9
sha256
d7225d4508686cbb7fa1db07b5380ac8e4742dac251a05303e300816e50a0e7e
sha512
73fca744abfc40e279edc613f0f52fda7d2652af93166c0820e31445ed0b20cb85b4c805bdf4aeac03eaf046c56d668d1c329649823cee6d70820e448df47713
ripemd-160
f0eff3de1f25153e1ec0cdb087b73b5ca267c1f1
Diameter
777310770
Circumference
2441993804.5882
Area
4.7454702114493E+17
Volume
2.4591367360491E+26
Surface area
1.8981880845797E+18
Circumference
2441993804.5882
Perimeter
1554621540
Area
151053008289498225
Diagonal
549641716.55634
Surface area
906318049736989350
Volume
5.8707565092163E+25
Space diagonal
673170873.45524
Perimeter
1165966155
Area
6.5407871248383E+16
Altitude
336585436.72762
Surface area
6.5407871248383E+16
Volume
6.9187528972699E+24
Height
183213905.51878