1388129621 is an odd 10-digits composite number following 1388129620
and preceding 1388129622 . In scientific notation, it is written as 1.388129621 × 10^9.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 1376850400 positive integers (up to 1388129621) that are relatively prime to 1388129621.
1388129621 has 8 divisors, whose sum is 1399425984
The reverse of 1388129621 is 1269218831
Previous prime number is 6983
Is Prime? no Number parity odd Number length 10 Sum of Digits 41 Digital Root 5
Name
one billion three hundred eighty-eight million one hundred twenty-nine thousand six hundred twenty-one
Scientific notation
1.388129621 × 10^9
Engineering notation
1.388129621 × 10^9
Prime Factorization
137 × 6983 × 1451
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1388129621 Product of the distinct prime numbers
The prime factorization of 1388129621 is 137 × 6983 × 1451.
Since it has a total of 3 prime factors.
5 , 6 , 80 , 82 , 601 , 986 , 4208 , 124 , 28945 , 15249 , 233900 , 446972 , 3381307 , 8115989 , 91607109 , 87765355 , 952559310 , 93097864 , 4664583424 , 9648716717
n×2
2776259242
n×3
4164388863
n×4
5552518484
n×5
6940648105
n÷2
694064810.5
n÷3
462709873.66667
n÷3
347032405.25
n÷5
277625924.2
n2
1926903844697603641
n3
2.6747923036435E+27
n4
3.7129584267104E+36
n5
5.1540675736583E+45
2 √n37257.611584749
3 √n1115.5182348336
4 √n193.02230851575
5 √n67.373018333827
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
-1388129620 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 1388129621 can be divided by 8 positive divisors.
The sum of these divisors (counting 1388129621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111010010110101010101
3
Ternary
10120202000021212012
4
Quaternary
1102233102311111
5
Quinary
10320330121441
6
Senary
345424234005
8
Octal
12257226525
10
Decimal
1388129621
12
Duodecimal
328a6b905
16
Hexadecimal
52bd2d55
20
Vigesimal
11dfg411
36
Base36
mygfo5
md5
1209fc7bc0a41b42dd7d4ece72d3055d
sha1
fa08d0b5c567fccfe47bf4b96f9e37b116b31ee6
sha256
4553498c81fe8e9c015881c28857a5b8d6c2797452a701182b211d727dbb3e4b
sha512
57d3a38c301da2faaabfee2d4ec7c9a5d0e29d92954367eefd4234112df88e90f32091bb4fddee28ed0fd0957c882a593ddeb49e84f6e40c4e489ddc642490e7
ripemd-160
b77eafcfad2c08496ee52b66231c0c1708af2d69
Diameter
2776259242
Circumference
8721875639.128
Area
6.0535469626759E+18
Volume
1.120414380134E+28
Surface area
2.4214187850704E+19
Circumference
8721875639.128
Perimeter
5552518484
Area
1926903844697603641
Diagonal
1963111736.35
Surface area
1.1561423068186E+19
Volume
2.6747923036435E+27
Space diagonal
2404311031.0633
Perimeter
4164388863
Area
8.3437384007901E+17
Altitude
1202155515.5317
Surface area
8.3437384007901E+17
Volume
3.1522729602865E+26
Height
654370578.78334