1388891389 is an odd 10-digits composite number following 1388891388
and preceding 1388891390 . In scientific notation, it is written as 1.388891389 × 10^9.
The sum of its digits is 58. It has a total of 2 prime factors and 4 positive divisors.
There are 1387754524 positive integers (up to 1388891389) that are relatively prime to 1388891389.
1388891389 has 4 divisors, whose sum is 1390028256
The reverse of 1388891389 is 9831988831
Previous prime number is 1223
Is Prime? no Number parity odd Number length 10 Sum of Digits 58 Digital Root 4
Name
one billion three hundred eighty-eight million eight hundred ninety-one thousand three hundred eighty-nine
Scientific notation
1.388891389 × 10^9
Engineering notation
1.388891389 × 10^9
Prime Factorization
1223 × 1135643
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1388891389 Product of the distinct prime numbers
The prime factorization of 1388891389 is 1223 × 1135643.
Since it has a total of 2 prime factors.
6 , 9 , 7 , 97 , 441 , 911 , 2200 , 4013 , 43001 , 48651 , 441575 , 432479 , 7711250 , 6770212 , 70042275 , 43366480 , 665657770 , 209528173 , 2854348408 , 4174689243
n×2
2777782778
n×3
4166674167
n×4
5555565556
n×5
6944456945
n÷2
694445694.5
n÷3
462963796.33333
n÷3
347222847.25
n÷5
277778277.8
n2
1929019290438349321
n3
2.6791982817047E+27
n4
3.7211154228833E+36
n5
5.1682251683177E+45
2 √n37267.833167492
3 √n1115.7222529326
4 √n193.04878442376
5 √n67.380411209331
4 divisors
τ Total Divisors
4 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1388891388 Sum of the proper positive divisors of n
A Arithmetic Mean
0.25 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
4 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1388891389 can be divided by 4 positive divisors.
The sum of these divisors (counting 1388891389) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010110010001100110011111101
3
Ternary
10120210102222210211
4
Quaternary
1102302030303331
5
Quinary
10321024011024
6
Senary
345452432421
8
Octal
12262146375
10
Decimal
1388891389
12
Duodecimal
329178711
16
Hexadecimal
52c8ccfd
20
Vigesimal
11e0b899
36
Base36
mywrgd
md5
ca763857a91fbea00d19dfbcdcc29cb4
sha1
d3fcc0f954179ffe9bbb8f94f3afa96c4254c0c1
sha256
2e3407318037cab3ff64224011d68276dcf8578f3f0a5b95017b4605ca793aa6
sha512
7ae6abd66aadd447c9dd1c9eeb086139a5a4efa7c5f9f86247f633b0b166509184d5eb93ae9b879d7f16c032408f0adf636607f3e98f368f5fecafd90211f58f
ripemd-160
d3a9c1c5ee961978fc580aced792cf955e480365
Diameter
2777782778
Circumference
8726661968.633
Area
6.0601928314741E+18
Volume
1.1222599519085E+28
Surface area
2.4240771325896E+19
Circumference
8726661968.633
Perimeter
5555565556
Area
1929019290438349321
Diagonal
1964189038.987
Surface area
1.157411574263E+19
Volume
2.6791982817047E+27
Space diagonal
2405630451.9429
Perimeter
4166674167
Area
8.3528985495492E+17
Altitude
1202815225.9715
Surface area
8.3528985495492E+17
Volume
3.1574654552279E+26
Height
654729679.66234