1387388631 is an odd 10-digits composite number following 1387388630
and preceding 1387388632 . In scientific notation, it is written as 1.387388631 × 10^9.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 911120760 positive integers (up to 1387388631) that are relatively prime to 1387388631.
1387388631 has 8 divisors, whose sum is 1877461504
The reverse of 1387388631 is 1368837831
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 48
Digital Root 3
Name
one billion three hundred eighty-seven million three hundred eighty-eight thousand six hundred thirty-one
Scientific notation
1.387388631 × 10^9
Engineering notation
1.387388631 × 10^9
Prime Factorization
3 × 67 × 6902431
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1387388631
Product of the distinct prime numbers
The prime factorization of 1387388631 is 3 × 67 × 6902431.
Since it has a total of 3 prime factors.
7 , 5 , 81 , 66 , 444 , 661 , 3011 , 4212 , 52498 , 87506 , 668178 , 177080 , 5240875 , 6276922 , 87172970 , 19590474 , 251718935 , 637341542 , 1287895511 , 4949213564
n×2
2774777262
n×3
4162165893
n×4
5549554524
n×5
6936943155
n÷2
693694315.5
n÷3
462462877
n÷3
346847157.75
n÷5
277477726.2
n2
1924847213428054161
n3
2.6705111403221E+27
n4
3.7050367950417E+36
n5
5.1403259268776E+45
2 √n
37247.666114805
3 √n
1115.3197099104
4 √n
192.99654430794
5 √n
67.365823991871
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
-1387388630
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 1387388631 can be divided by 8 positive divisors.
The sum of these divisors (counting 1387388631) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101100011101111011010111
3
Ternary
10120200121122102010
4
Quaternary
1102230131323113
5
Quinary
10320132414011
6
Senary
345400315303
8
Octal
12254357327
10
Decimal
1387388631
12
Duodecimal
328772b33
16
Hexadecimal
52b1ded7
20
Vigesimal
11db3bbb
36
Base36
my0jx3
md5
584337c4ecbe4827ea9208657f1837b7
sha1
5b18c4c11e6e54aa53f8426c2322c64b11a1154a
sha256
71371c1912127e9da9f039bb83497828a89f7b6448018e1430ebef004885881e
sha512
564c465456989856235191840a891df8c64de9d3ee9eab8ad98fd4cffb2e26e70de6d927cc39edc17702f22232664de3dec31c6c2d4034d3b1454be013f7f883
ripemd-160
319a92c3c52c1a4f228f149de2c8e5aeee2f4ad1
Diameter
2774777262
Circumference
8717219861.6472
Area
6.0470858649884E+18
Volume
1.1186210906354E+28
Surface area
2.4188343459953E+19
Circumference
8717219861.6472
Perimeter
5549554524
Area
1924847213428054161
Diagonal
1962063818.2424
Surface area
1.1549083280568E+19
Volume
2.6705111403221E+27
Space diagonal
2403027598.7354
Perimeter
4162165893
Area
8.3348329261619E+17
Altitude
1201513799.3677
Surface area
8.3348329261619E+17
Volume
3.1472275609266E+26
Height
654021272.74748