1387388639 is an odd 10-digits composite number following 1387388638
and preceding 1387388640 . In scientific notation, it is written as 1.387388639 × 10^9.
The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors.
There are 1097714016 positive integers (up to 1387388639) that are relatively prime to 1387388639.
1387388639 has 8 divisors, whose sum is 1707555360
The reverse of 1387388639 is 9368837831
Previous prime number is 13
Is Prime? no Number parity odd Number length 10 Sum of Digits 56 Digital Root 2
Name
one billion three hundred eighty-seven million three hundred eighty-eight thousand six hundred thirty-nine
Scientific notation
1.387388639 × 10^9
Engineering notation
1.387388639 × 10^9
Prime Factorization
7 × 13 × 15246029
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1387388639 Product of the distinct prime numbers
The prime factorization of 1387388639 is 7 × 13 × 15246029.
Since it has a total of 3 prime factors.
9 , 6 , 23 , 31 , 113 , 569 , 794 , 8111 , 28147 , 86918 , 269643 , 749250 , 3634203 , 5400773 , 43619558 , 49884670 , 519607387 , 499245391 , 1158697926 , 1533927573
n×2
2774777278
n×3
4162165917
n×4
5549554556
n×5
6936943195
n÷2
693694319.5
n÷3
462462879.66667
n÷3
346847159.75
n÷5
277477727.8
n2
1924847235626272321
n3
2.6705111865184E+27
n4
3.7050368804981E+36
n5
5.1403260750791E+45
2 √n37247.666222194
3 √n1115.3197120541
4 √n192.99654458615
5 √n67.365824069561
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
-1387388638 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 1387388639 can be divided by 8 positive divisors.
The sum of these divisors (counting 1387388639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101100011101111011011111
3
Ternary
10120200121122102102
4
Quaternary
1102230131323133
5
Quinary
10320132414024
6
Senary
345400315315
8
Octal
12254357337
10
Decimal
1387388639
12
Duodecimal
328772b3b
16
Hexadecimal
52b1dedf
20
Vigesimal
11db3bbj
36
Base36
my0jxb
md5
6253b77a096485571d65f78a4cab1ef1
sha1
ebd6f695829dcc1be9b8977a66b4d0904344bd59
sha256
777f0f313a6f36d6b0ee19095daf250b3c525f77b8140a4d501e1fb46f009ff4
sha512
adb968548450eeded19c13953311668799aa9f7af239dba84df20ed7b365a0b723f9f9f431386bcf1a0fd9b207f81fb2ec049a3f61f1474d5727c433c49b9882
ripemd-160
eb9669b263f377011ce18a2f8a0b7bc7848bc6a8
Diameter
2774777278
Circumference
8717219911.9127
Area
6.0470859347261E+18
Volume
1.1186211099861E+28
Surface area
2.4188343738904E+19
Circumference
8717219911.9127
Perimeter
5549554556
Area
1924847235626272321
Diagonal
1962063829.5562
Surface area
1.1549083413758E+19
Volume
2.6705111865184E+27
Space diagonal
2403027612.5918
Perimeter
4162165917
Area
8.334833022283E+17
Altitude
1201513806.2959
Surface area
8.334833022283E+17
Volume
3.1472276153695E+26
Height
654021276.51872