1387388621 is an odd 10-digits composite number following 1387388620
and preceding 1387388622 . In scientific notation, it is written as 1.387388621 × 10^9.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 1373652000 positive integers (up to 1387388621) that are relatively prime to 1387388621.
1387388621 has 4 divisors, whose sum is 1401125244
The reverse of 1387388621 is 1268837831
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 47
Digital Root 2
Name
one billion three hundred eighty-seven million three hundred eighty-eight thousand six hundred twenty-one
Scientific notation
1.387388621 × 10^9
Engineering notation
1.387388621 × 10^9
Prime Factorization
101 × 13736521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1387388621
Product of the distinct prime numbers
The prime factorization of 1387388621 is 101 × 13736521.
Since it has a total of 2 prime factors.
5 , 10 , 36 , 38 , 447 , 112 , 7207 , 2052 , 96237 , 5248 , 247874 , 291892 , 5210861 , 7183076 , 89647635 , 73247943 , 277304818 , 707794774 , 5887299724 , 5009978786
n×2
2774777242
n×3
4162165863
n×4
5549554484
n×5
6936943105
n÷2
693694310.5
n÷3
462462873.66667
n÷3
346847155.25
n÷5
277477724.2
n2
1924847185680281641
n3
2.6705110825767E+27
n4
3.7050366882213E+36
n5
5.1403257416258E+45
2 √n
37247.665980568
3 √n
1115.3197072307
4 √n
192.99654396017
5 √n
67.36582389476
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
-1387388620
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 1387388621 can be divided by 4 positive divisors.
The sum of these divisors (counting 1387388621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101100011101111011001101
3
Ternary
10120200121122101202
4
Quaternary
1102230131323031
5
Quinary
10320132413441
6
Senary
345400315245
8
Octal
12254357315
10
Decimal
1387388621
12
Duodecimal
328772b25
16
Hexadecimal
52b1decd
20
Vigesimal
11db3bb1
36
Base36
my0jwt
md5
88fc0af9e5be025b09248c7edc2b73cd
sha1
73ad22fec6f84de8921ca1a6e0cec20a3e52a603
sha256
8a2500d90a1c904e03d33cf59b1eb9aee8b74a6bc6155334ce141ba8385b2cf4
sha512
439cb7cf353fb336128c2db58296ef3d2d3483b639be7c672f23c40785268ff4861d88dc74de337e6820dddbdc1eaccc2d18bc393e74967b742043f9de522dc5
ripemd-160
d3953236fad44bd58bfacb94bcedca353b79ff69
Diameter
2774777242
Circumference
8717219798.8153
Area
6.0470857778162E+18
Volume
1.1186210664471E+28
Surface area
2.4188343111265E+19
Circumference
8717219798.8153
Perimeter
5549554484
Area
1924847185680281641
Diagonal
1962063804.1003
Surface area
1.1549083114082E+19
Volume
2.6705110825767E+27
Space diagonal
2403027581.4149
Perimeter
4162165863
Area
8.3348328060105E+17
Altitude
1201513790.7075
Surface area
8.3348328060105E+17
Volume
3.147227492873E+26
Height
654021268.03344