388431389 is an odd 9-digits prime number following 388431388
and preceding 388431390 . In scientific notation, it is written as 3.88431389 × 10^8.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 388431388 positive integers (up to 388431389) that are relatively prime to 388431389.
388431389 has 2 divisors, whose sum is 388431390
The reverse of 388431389 is 983134883
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
three hundred eighty-eight million four hundred thirty-one thousand three hundred eighty-nine
Scientific notation
3.88431389 × 10^8
Engineering notation
3.88431389 × 10^6
Prime Factorization
388431389
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
388431389
Product of the distinct prime numbers
The prime factorization of 388431389 is 388431389.
Since it has a total of 1 prime factors.
5 , 3 , 74 , 41 , 26 , 874 , 1710 , 5143 , 75894 , 80335 , 956602 , 912509 , 9850696 , 2063682 , 50367959 , 84983451 , 887167592 , 690194593 , 2297661570 , 1582121815
n×2
776862778
n×3
1165294167
n×4
1553725556
n×5
1942156945
n÷2
194215694.5
n÷3
129477129.66667
n÷3
97107847.25
n÷5
77686277.8
n2
150878943960469321
n3
5.8606117773418E+25
n4
2.2764455730626E+34
n5
8.8424291592762E+42
2 √n
19708.662790763
3 √n
729.63351154189
4 √n
140.3875449987
5 √n
52.223125888027
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
388431390
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
194215695
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
19708.662816132
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999948511
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 388431389 can be divided by 2 positive divisors.
The sum of these divisors (counting 388431389) is 388431390, the average is 194215695.
Base
System
Value
2
Binary
10111001001101111111000011101
3
Ternary
1000001220100200202
4
Quaternary
113021233320131
5
Quinary
1243414301024
6
Senary
102313233245
8
Octal
2711577035
10
Decimal
388431389
12
Duodecimal
aa102825
16
Hexadecimal
1726fe1d
20
Vigesimal
617di99
36
Base36
6f9fkt
md5
ff9f4f97ab6b274b35a86119d1902372
sha1
74e36cc6088f32ef220c03d52f8c35a0ded299de
sha256
f95088300ff6af454f83446b28053b7342fe2453e7f599b86b1413d94dff455b
sha512
48826bbbdcfe07bb6fdfe9d1e1f2c360b35214f9d5a00cda6a2fea5ab036b5ae34fb7942c7a4f7bf334e3092e615cbd8b287d02c98f9c843f0aa7014d8c58edb
ripemd-160
7664c6f89ce116acab817cf355e6752773a2638e
Diameter
776862778
Circumference
2440586396.2122
Area
4.740001819276E+17
Volume
2.4548873206985E+26
Surface area
1.8960007277104E+18
Circumference
2440586396.2122
Perimeter
1553725556
Area
150878943960469321
Diagonal
549324938.37522
Surface area
905273663762815926
Volume
5.8606117773418E+25
Space diagonal
672782901.00255
Perimeter
1165294167
Area
6.5332499182968E+16
Altitude
336391450.50128
Surface area
6.5332499182968E+16
Volume
6.9067972161003E+24
Height
183108312.79174