1388398905 is an odd 10-digits composite number following 1388398904
and preceding 1388398906 . In scientific notation, it is written as 1.388398905 × 10^9.
The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors.
There are 740479392 positive integers (up to 1388398905) that are relatively prime to 1388398905.
1388398905 has 8 divisors, whose sum is 1974611840
The reverse of 1388398905 is 5098938831
Previous prime number is 3
Is Prime? no Number parity odd Number length 10 Sum of Digits 54 Digital Root 9
Name
one billion three hundred eighty-eight million three hundred ninety-eight thousand nine hundred five
Scientific notation
1.388398905 × 10^9
Engineering notation
1.388398905 × 10^9
Prime Factorization
15 × 3 × 30853309
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1388398905 Product of the distinct prime numbers
The prime factorization of 1388398905 is 15 × 3 × 30853309.
Since it has a total of 3 prime factors.
2 , 6 , 24 , 82 , 479 , 195 , 9700 , 3393 , 43698 , 97824 , 5400 , 176188 , 8698136 , 1187260 , 86584268 , 90302325 , 470154850 , 600105677 , 4215440950 , 4148018815
n×2
2776797810
n×3
4165196715
n×4
5553595620
n×5
6941994525
n÷2
694199452.5
n÷3
462799635
n÷3
347099726.25
n÷5
277679781
n2
1927651519405199025
n3
2.6763492587638E+27
n4
3.7158403802652E+36
n5
5.1590687151149E+45
2 √n37261.225221401
3 √n1115.590363494
4 √n193.03166895979
5 √n67.375632076517
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
-1388398904 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 1388398905 can be divided by 8 positive divisors.
The sum of these divisors (counting 1388398905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110000010100100100111001
3
Ternary
10120202111222020200
4
Quaternary
1102300110210321
5
Quinary
10320412231110
6
Senary
345434112413
8
Octal
12260244471
10
Decimal
1388398905
12
Duodecimal
328b7b709
16
Hexadecimal
52c14939
20
Vigesimal
11dh9h55
36
Base36
mym7g9
md5
6c1c2920782df374a17ed5614200651c
sha1
526fc90ebf639f751cc850da80e24cb6ccfaacc5
sha256
98c82c7bd8ef1b180968f602e8ea8d28b852e2d0e7e297f1ced37dab9bf3df84
sha512
d5f89e04aded168456164719d4661d769a0b806731f3bf6964da5af5fee040d06e22225e77a56ba74f406787f9a3f0194dbab35360dabafe6f604ab463163d46
ripemd-160
05f699a43ada2293f19f4831961fa62b97ca6eb7
Diameter
2776797810
Circumference
8723567600.4002
Area
6.0558958520446E+18
Volume
1.1210665559697E+28
Surface area
2.4223583408178E+19
Circumference
8723567600.4002
Perimeter
5553595620
Area
1927651519405199025
Diagonal
1963492561.435
Surface area
1.1565909116431E+19
Volume
2.6763492587638E+27
Space diagonal
2404777444.633
Perimeter
4165196715
Area
8.3469759272429E+17
Altitude
1202388722.3165
Surface area
8.3469759272429E+17
Volume
3.1541078494924E+26
Height
654497520.47832