388145 is an odd 6-digits composite number following 388144
and preceding 388146 . In scientific notation, it is written as 3.88145 × 10^5.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 307840 positive integers (up to 388145) that are relatively prime to 388145.
388145 has 8 divisors, whose sum is 469800
The reverse of 388145 is 541883
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2
Name
three hundred eighty-eight thousand one hundred forty-five
Scientific notation
3.88145 × 10^5
Engineering notation
3.88145 × 10^3
Prime Factorization
5 × 149 × 521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
388145
Product of the distinct prime numbers
The prime factorization of 388145 is 5 × 149 × 521.
Since it has a total of 3 prime factors.
5 , 3 , 45 , 67 , 115 , 791 , 8318 , 2820 , 79713 , 57010 , 650811 , 816062 , 8244926 , 1789153 , 94131460 , 40729384 , 29944777 , 362284692 , 8892892919 , 8451812460
n×2
776290
n×3
1164435
n×4
1552580
n×5
1940725
n÷2
194072.5
n÷3
129381.66666667
n÷3
97036.25
n÷5
77629
n2
150656541025
n3
58476583116148625
n4
2.2697393353618E+22
n5
8.8098797432399E+27
2 √n
623.01284095916
3 √n
72.945414877359
4 √n
24.960225178455
5 √n
13.115921213004
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
-388144
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 388145 can be divided by 8 positive divisors.
The sum of these divisors (counting 388145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1011110110000110001
3
Ternary
201201102202
4
Quaternary
1132300301
5
Quinary
44410040
6
Senary
12152545
8
Octal
1366061
10
Decimal
388145
12
Duodecimal
168755
16
Hexadecimal
5ec31
20
Vigesimal
28a75
36
Base36
8bht
md5
4883803cdcb3a8390108b4d73bf9711e
sha1
baee59920809ce4d4918f418193d76e08b84a612
sha256
29d5c5eb7f3ff03089466ee1614db164f55ef9abb12068ee920ce663c144acd0
sha512
ed72201c2f5d4f985b6165ebd47e24f280e6bd6583aa4561f206487fbb71f39579134cf06d9a12819913e8672a29218da6800a71af6b7efdf70b6f90edd4d74a
ripemd-160
dcd3d8427875a70eab7525486c29f435502ed242
Diameter
776290
Circumference
2438786.9610552
Area
473301482499.39
Volume
2.449461385663E+17
Surface area
1893205929997.6
Circumference
2438786.9610552
Perimeter
1552580
Area
150656541025
Diagonal
548919.92316731
Surface area
903939246150
Volume
58476583116148625
Space diagonal
672286.86070382
Perimeter
1164435
Area
65236195886.971
Altitude
336143.43035191
Surface area
65236195886.971
Volume
6.8915314103412E+15
Height
182973.30772244