138187906 is an even 9-digits composite number following 138187905
and preceding 138187907 . In scientific notation, it is written as 1.38187906 × 10^8.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 68035968 positive integers (up to 138187906) that are relatively prime to 138187906.
138187906 has 16 divisors, whose sum is 210470400
The reverse of 138187906 is 609781831
Previous prime number is 79
Is Prime? no
Number parity even
Number length 9
Sum of Digits 43
Digital Root 7
Name
one hundred thirty-eight million one hundred eighty-seven thousand nine hundred six
Scientific notation
1.38187906 × 10^8
Engineering notation
1.38187906 × 10^6
Prime Factorization
2 × 463 × 79 × 1889
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
138187906
Product of the distinct prime numbers
The prime factorization of 138187906 is 2 × 463 × 79 × 1889.
Since it has a total of 4 prime factors.
1 , 7 , 45 , 38 , 899 , 463 , 3250 , 8113 , 62288 , 74649 , 742097 , 644736 , 7136364 , 8979884 , 83406049 , 83186333 , 442019662 , 40922080 , 4550676941 , 8135428883
n×2
276375812
n×3
414563718
n×4
552751624
n×5
690939530
n÷2
69093953
n÷3
46062635.333333
n÷3
34546976.5
n÷5
27637581.2
n2
19095897364664836
n3
2.638822070014E+24
n4
3.6465329616181E+32
n5
5.0390675412599E+40
2 √n
11755.335214276
3 √n
516.9993677248
4 √n
108.42202365883
5 √n
42.471148684541
1 , 2 , 79 , 158 , 463 , 926 , 1889 , 3778 , 36577 , 73154 , 149231 , 298462 , 874607 , 1749214 , 69093953 , 138187906
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138187905
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138187906 can be divided by 16 positive divisors.
The sum of these divisors (counting 138187906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000001111001001010010000010
3
Ternary
100122000200011121
4
Quaternary
20033021102002
5
Quinary
240334003111
6
Senary
21413502454
8
Octal
1017112202
10
Decimal
138187906
12
Duodecimal
3a341a2a
16
Hexadecimal
83c9482
20
Vigesimal
233d9f6
36
Base36
2a9ugy
md5
907f3b7bb86ba24fa14d36f7d15f44cc
sha1
6b27d168e2fdcd92367161eb9570b6c55894f7ae
sha256
55ae2d352ebbb23afcd63963b7e0496c561cfd37dba276abc26bb4b5fb82217b
sha512
6a9e636d2d8c318fdb38a2f2231f26a4fcc7309f411627d387044b896e236560bd37d96ed4d65905c32cd0a2baf65bc08dce7ed0433beb3cfa606beee2389f3d
ripemd-160
dca9721d1de4c8a57c45ed7fa2694d018512e25c
Diameter
276375812
Circumference
868260220.60911
Area
5.9991530874536E+16
Volume
1.1053472039049E+25
Surface area
2.3996612349814E+17
Circumference
868260220.60911
Perimeter
552751624
Area
19095897364664836
Diagonal
195427210.82114
Surface area
114575384187989016
Volume
2.638822070014E+24
Space diagonal
239348474.18355
Perimeter
414563718
Area
8.26876611293E+15
Altitude
119674237.09178
Surface area
8.26876611293E+15
Volume
3.1098816334193E+23
Height
65142403.607046