138606905 is an odd 9-digits composite number following 138606904
and preceding 138606906 . In scientific notation, it is written as 1.38606905 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 110678400 positive integers (up to 138606905) that are relatively prime to 138606905.
138606905 has 8 divisors, whose sum is 166638984
The reverse of 138606905 is 509606831
Previous prime number is 541
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred thirty-eight million six hundred six thousand nine hundred five
Scientific notation
1.38606905 × 10^8
Engineering notation
1.38606905 × 10^6
Prime Factorization
5 × 541 × 51241
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
138606905
Product of the distinct prime numbers
The prime factorization of 138606905 is 5 × 541 × 51241.
Since it has a total of 3 prime factors.
8 , 3 , 45 , 18 , 566 , 349 , 1514 , 4740 , 74061 , 53505 , 481695 , 854251 , 8825956 , 8935532 , 30459246 , 94466806 , 349770149 , 432234233 , 2004780382 , 9098575030
n×2
277213810
n×3
415820715
n×4
554427620
n×5
693034525
n÷2
69303452.5
n÷3
46202301.666667
n÷3
34651726.25
n÷5
27721381
n2
19211874113679025
n3
2.6628984101467E+24
n4
3.6909610695985E+32
n5
5.1159269033254E+40
2 √n
11773.143378045
3 √n
517.52137106699
4 √n
108.50411687141
5 √n
42.496872824398
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
-138606904
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 138606905 can be divided by 8 positive divisors.
The sum of these divisors (counting 138606905) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000010000101111100100111001
3
Ternary
100122210221221002
4
Quaternary
20100233210321
5
Quinary
240440410110
6
Senary
21430454345
8
Octal
1020574471
10
Decimal
138606905
12
Duodecimal
3a5043b5
16
Hexadecimal
842f939
20
Vigesimal
2365h55
36
Base36
2aitrt
md5
a7fb38e97add704fcfdd1588150eab5f
sha1
5e022b5df4d55e4e0e61a4166b52f20aa0f839cb
sha256
f8ca69dab0033a6d3cbccc60f12e8fc73facae54df1ffc12053489ae0c66b8cc
sha512
eed39e44634d967cfb13195a763291b4bf463bf8d1de6db4faba0a99366ca63b264dee77ba986e5c77b3d6b2684c2506e69ad10393948c082933e8e25da577cb
ripemd-160
560f40a69cddbb626d0fea6fafd8e8b9bee76364
Diameter
277213810
Circumference
870892868.96964
Area
6.0355882577226E+16
Volume
1.1154322776764E+25
Surface area
2.414235303089E+17
Circumference
870892868.96964
Perimeter
554427620
Area
19211874113679025
Diagonal
196019764.88956
Surface area
115271244682074150
Volume
2.6628984101467E+24
Space diagonal
240074201.73987
Perimeter
415820715
Area
8.3189855183773E+15
Altitude
120037100.86994
Surface area
8.3189855183773E+15
Volume
3.138255872376E+23
Height
65339921.629853