138839686 is an even 9-digits composite number following 138839685
and preceding 138839687 . In scientific notation, it is written as 1.38839686 × 10^8.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 69419842 positive integers (up to 138839686) that are relatively prime to 138839686.
138839686 has 4 divisors, whose sum is 208259532
The reverse of 138839686 is 686938831
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 52
Digital Root 7
Name
one hundred thirty-eight million eight hundred thirty-nine thousand six hundred eighty-six
Scientific notation
1.38839686 × 10^8
Engineering notation
1.38839686 × 10^6
Prime Factorization
2 × 69419843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138839686
Product of the distinct prime numbers
The prime factorization of 138839686 is 2 × 69419843.
Since it has a total of 2 prime factors.
6 , 6 , 96 , 23 , 52 , 81 , 3319 , 1378 , 51823 , 65080 , 782210 , 526259 , 8612120 , 105328 , 55349413 , 36089123 , 930816731 , 786296425 , 5285832522 , 2125439448
n×2
277679372
n×3
416519058
n×4
555358744
n×5
694198430
n÷2
69419843
n÷3
46279895.333333
n÷3
34709921.5
n÷5
27767937.2
n2
19276458408578596
n3
2.6763374326391E+24
n4
3.7158184877766E+32
n5
5.159030720759E+40
2 √n
11783.02533308
3 √n
517.81092317644
4 √n
108.54964455529
5 √n
42.511137374565
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
-138839685
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 138839686 can be divided by 4 positive divisors.
The sum of these divisors (counting 138839686) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000010001101000011010000110
3
Ternary
100200020210020121
4
Quaternary
20101220122012
5
Quinary
241020332221
6
Senary
21435452154
8
Octal
1021503206
10
Decimal
138839686
12
Duodecimal
3a5b705a
16
Hexadecimal
8468686
20
Vigesimal
237ej46
36
Base36
2antdy
md5
3698b6f489cab0fe25b3a221522eab6b
sha1
309ffdc2fb2e841893154100c2b688f493844a45
sha256
bb746ef395704db8deee2c56f9e8eaf18ceb87457da189aafc9b0a1d2256d6e1
sha512
8ef4b9181ff14527866f94ce219d9d00f2c60e35668d7a8f5569473ccc5935e903f73a3ee3728b7e2418236fd4b8214ca6ae70f9fc1aa288de3c9d44cc1fe34e
ripemd-160
9ae30b8170a21cfb40a464599232c0dcf1c764b5
Diameter
277679372
Circumference
872355475.12863
Area
6.055878012362E+16
Volume
1.1210616022542E+25
Surface area
2.4223512049448E+17
Circumference
872355475.12863
Perimeter
555358744
Area
19276458408578596
Diagonal
196348966.93682
Surface area
115658750451471576
Volume
2.6763374326391E+24
Space diagonal
240477390.25891
Perimeter
416519058
Area
8.3469513384116E+15
Altitude
120238695.12945
Surface area
8.3469513384116E+15
Volume
3.1540939122709E+23
Height
65449655.645607