388390690 is an even 9-digits composite number following 388390689
and preceding 388390691 . In scientific notation, it is written as 3.88390690 × 10^8.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 155177584 positive integers (up to 388390690) that are relatively prime to 388390690.
388390690 has 16 divisors, whose sum is 699907392
The reverse of 388390690 is 096093883
Previous prime number is 887
Is Prime? no
Number parity even
Number length 9
Sum of Digits 46
Digital Root 1
Name
three hundred eighty-eight million three hundred ninety thousand six hundred ninety
Scientific notation
3.88390690 × 10^8
Engineering notation
3.88390690 × 10^6
Prime Factorization
2 × 5 × 887 × 43787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
388390690
Product of the distinct prime numbers
The prime factorization of 388390690 is 2 × 5 × 887 × 43787.
Since it has a total of 4 prime factors.
7 , 1 , 79 , 79 , 662 , 34 , 3663 , 5590 , 16320 , 42079 , 59892 , 839616 , 3112259 , 5096814 , 74324519 , 2410751 , 296708943 , 149910482 , 6704479540 , 5661640975
n×2
776781380
n×3
1165172070
n×4
1553562760
n×5
1941953450
n÷2
194195345
n÷3
129463563.33333
n÷3
97097672.5
n÷5
77678138
n2
150847328078676100
n3
5.8587697837133E+25
n4
2.2754916388476E+34
n5
8.8377976770124E+42
2 √n
19707.630248206
3 √n
729.60802751191
4 √n
140.38386747845
5 √n
52.222031476944
1 , 2 , 5 , 10 , 887 , 1774 , 4435 , 8870 , 43787 , 87574 , 218935 , 437870 , 38839069 , 77678138 , 194195345 , 388390690
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-388390689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 388390690 can be divided by 16 positive divisors.
The sum of these divisors (counting 388390690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10111001001100101111100100010
3
Ternary
1000001211021212101
4
Quaternary
113021211330202
5
Quinary
1243412000230
6
Senary
102312321014
8
Octal
2711457442
10
Decimal
388390690
12
Duodecimal
aa0a316a
16
Hexadecimal
17265f22
20
Vigesimal
6178gea
36
Base36
6f8k6a
md5
a6c28dc4492ecb6ad812018e78bf3e69
sha1
e92fc43c4a738b4ea961001482f867dfa04814b4
sha256
7850fce878a3942c36de0d0afdbec0d8aae3d95605f48f1b2265f01200a2c8c5
sha512
4dc223f9f93e174fc6247f6ffc9da4ab624cee9623000d5d4a84e8a6793eb165edee3279c65e1e2af936be81401977e444e4c443cddf11a7e9d2b830ac693da9
ripemd-160
c4bbfdbeeef7f6006522a3e9c717b457f578ec58
Diameter
776781380
Circumference
2440330676.8533
Area
4.7390085770562E+17
Volume
2.4541157482117E+26
Surface area
1.8956034308225E+18
Circumference
2440330676.8533
Perimeter
1553562760
Area
150847328078676100
Diagonal
549267381.29744
Surface area
905083968472056600
Volume
5.8587697837133E+25
Space diagonal
672712408.26673
Perimeter
1165172070
Area
6.531880910457E+16
Altitude
336356204.13337
Surface area
6.531880910457E+16
Volume
6.9046264057909E+24
Height
183089127.09915