138187908 is an even 9-digits composite number following 138187907
and preceding 138187909 . In scientific notation, it is written as 1.38187908 × 10^8.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 45913536 positive integers (up to 138187908) that are relatively prime to 138187908.
138187908 has 24 divisors, whose sum is 269568600
The reverse of 138187908 is 809781831
Previous prime number is 317
Is Prime? no
Number parity even
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred thirty-eight million one hundred eighty-seven thousand nine hundred eight
Scientific notation
1.38187908 × 10^8
Engineering notation
1.38187908 × 10^6
Prime Factorization
2 × 2 × 9 × 317 × 12109
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
69093954
Product of the distinct prime numbers
The prime factorization of 138187908 is 2 × 2 × 9 × 317 × 12109.
Since it has a total of 5 prime factors.
1 , 9 , 18 , 86 , 177 , 416 , 1421 , 6435 , 74511 , 22602 , 167343 , 437040 , 2467268 , 2382087 , 27622827 , 20428094 , 13354203 , 125235100 , 9831491697 , 5488777128
n×2
276375816
n×3
414563724
n×4
552751632
n×5
690939540
n÷2
69093954
n÷3
46062636
n÷3
34546977
n÷5
27637581.6
n2
19095897917416464
n3
2.6388221845893E+24
n4
3.6465331727239E+32
n5
5.0390679059132E+40
2 √n
11755.335299344
3 √n
516.99937021898
4 √n
108.42202405113
5 √n
42.471148807478
1 , 2 , 4 , 9 , 18 , 36 , 317 , 634 , 1268 , 2853 , 5706 , 11412 , 12109 , 24218 , 48436 , 108981 , 217962 , 435924 , 3838553 , 7677106 , 15354212 , 34546977 , 69093954 , 138187908
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138187907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138187908 can be divided by 24 positive divisors.
The sum of these divisors (counting 138187908) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1000001111001001010010000100
3
Ternary
100122000200011200
4
Quaternary
20033021102010
5
Quinary
240334003113
6
Senary
21413502500
8
Octal
1017112204
10
Decimal
138187908
12
Duodecimal
3a341a30
16
Hexadecimal
83c9484
20
Vigesimal
233d9f8
36
Base36
2a9uh0
md5
04e56a78604acc4f3ecfd31b4515381d
sha1
c1c7113d0f57160c2cbcf357e74f33066ff225df
sha256
8ff6eec44f4502484c54c8e84a6e31b963d11e3bd29a8a1279136e465836c03e
sha512
55064f7e5fb3effb3d9082c8af3220682cb711adf433bae7424d2027664018cb593766e7a2af0e087a3379ac26de2ebe87cf40d53ebb580e6f9a65d303d07a89
ripemd-160
9769bd84ef54ddccb9e9900a4bcf2ab49c626fda
Diameter
276375816
Circumference
868260233.17548
Area
5.9991532611056E+16
Volume
1.1053472518981E+25
Surface area
2.3996613044422E+17
Circumference
868260233.17548
Perimeter
552751632
Area
19095897917416464
Diagonal
195427213.64957
Surface area
114575387504498784
Volume
2.6388221845893E+24
Space diagonal
239348477.64765
Perimeter
414563724
Area
8.2687663522785E+15
Altitude
119674238.82383
Surface area
8.2687663522785E+15
Volume
3.1098817684477E+23
Height
65142404.549855