138156905 is an odd 9-digits composite number following 138156904
and preceding 138156906 . In scientific notation, it is written as 1.38156905 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 110525520 positive integers (up to 138156905) that are relatively prime to 138156905.
138156905 has 4 divisors, whose sum is 165788292
The reverse of 138156905 is 509651831
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred thirty-eight million one hundred fifty-six thousand nine hundred five
Scientific notation
1.38156905 × 10^8
Engineering notation
1.38156905 × 10^6
Prime Factorization
5 × 27631381
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138156905
Product of the distinct prime numbers
The prime factorization of 138156905 is 5 × 27631381.
Since it has a total of 2 prime factors.
1 , 10 , 97 , 52 , 260 , 202 , 5215 , 5904 , 19363 , 7380 , 764095 , 994412 , 2039371 , 4651737 , 886007 , 90021519 , 25456012 , 601863719 , 5537594503 , 5627060107
n×2
276313810
n×3
414470715
n×4
552627620
n×5
690784525
n÷2
69078452.5
n÷3
46052301.666667
n÷3
34539226.25
n÷5
27631381
n2
19087330399179025
n3
2.637046492663E+24
n4
3.6432618176742E+32
n5
5.0334177683455E+40
2 √n
11754.016547547
3 √n
516.96070371397
4 √n
108.41594231268
5 √n
42.469242922619
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138156904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138156905 can be divided by 4 positive divisors.
The sum of these divisors (counting 138156905) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000001111000001101101101001
3
Ternary
100121222002122102
4
Quaternary
20033001231221
5
Quinary
240332010110
6
Senary
21413103145
8
Octal
1017015551
10
Decimal
138156905
12
Duodecimal
3a327ab5
16
Hexadecimal
83c1b69
20
Vigesimal
2339c55
36
Base36
2a96jt
md5
2e2230017bef34110c492dcbc60b7485
sha1
572b989702919315b3abc67a7e9ed7d20c6962b9
sha256
8da746d0c719c751bb2e221e8996bad60a0b5e1954f48ffffdc6c6ed0f0abb0b
sha512
4d29ecb915c9b3c9f743a5e80d4decd46ff6d627b92a0b7830e52b6f6f7c4b8b107fd4277d926ede9284c120b3a14e843250760e0e4d4b92a9478d4a15e2be8f
ripemd-160
0342660b08007df0586dd836d2d1860513923cf5
Diameter
276313810
Circumference
868065435.58141
Area
5.9964616958702E+16
Volume
1.1046034518033E+25
Surface area
2.3985846783481E+17
Circumference
868065435.58141
Perimeter
552627620
Area
19087330399179025
Diagonal
195383368.78649
Surface area
114523982395074150
Volume
2.637046492663E+24
Space diagonal
239294778.87647
Perimeter
414470715
Area
8.265056508058E+15
Altitude
119647389.43823
Surface area
8.265056508058E+15
Volume
3.1077890954437E+23
Height
65127789.595497