138840809 is an odd 9-digits composite number following 138840808
and preceding 138840810 . In scientific notation, it is written as 1.38840809 × 10^8.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 131533380 positive integers (up to 138840809) that are relatively prime to 138840809.
138840809 has 4 divisors, whose sum is 146148240
The reverse of 138840809 is 908048831
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred thirty-eight million eight hundred forty thousand eight hundred nine
Scientific notation
1.38840809 × 10^8
Engineering notation
1.38840809 × 10^6
Prime Factorization
19 × 7307411
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138840809
Product of the distinct prime numbers
The prime factorization of 138840809 is 19 × 7307411.
Since it has a total of 2 prime factors.
5 , 10 , 28 , 22 , 756 , 709 , 3573 , 2041 , 27002 , 21165 , 348799 , 857375 , 9501778 , 9447884 , 84184162 , 68075303 , 320065483 , 472822517 , 6552850102 , 6716283979
n×2
277681618
n×3
416522427
n×4
555363236
n×5
694204045
n÷2
69420404.5
n÷3
46280269.666667
n÷3
34710202.25
n÷5
27768161.8
n2
19276770243774481
n3
2.6764023755528E+24
n4
3.7159387103127E+32
n5
5.1592393673423E+40
2 √n
11783.07298628
3 √n
517.81231927126
4 √n
108.54986405464
5 √n
42.511206144315
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
-138840808
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 138840809 can be divided by 4 positive divisors.
The sum of these divisors (counting 138840809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000010001101000101011101001
3
Ternary
100200020211210012
4
Quaternary
20101220223221
5
Quinary
241020401214
6
Senary
21435501305
8
Octal
1021505351
10
Decimal
138840809
12
Duodecimal
3a5b7835
16
Hexadecimal
8468ae9
20
Vigesimal
237f209
36
Base36
2anu95
md5
5cd87b9ffbf9ecd86336f24be8835279
sha1
efc2858de8d6442a55e3ac38cb78c1624cd5b9af
sha256
fb0ded29a6ca844a4d49a484aebca0ee029df0fc2f7ce39a69f56eaf832e3ba8
sha512
022ef9f5bcf6459e0a56ba786c6f87c930f68386404928999512b357ade0e8633d6ac21f80a6a323e1813f9c98459baea6dbae190970462001e7010ff36e84c4
ripemd-160
cfcae40d7b5321289dd51d2f97e8bd8e858c540a
Diameter
277681618
Circumference
872362531.14573
Area
6.055975978278E+16
Volume
1.1210888054782E+25
Surface area
2.4223903913112E+17
Circumference
872362531.14573
Perimeter
555363236
Area
19276770243774481
Diagonal
196350555.09865
Surface area
115660621462646886
Volume
2.6764023755528E+24
Space diagonal
240479335.35197
Perimeter
416522427
Area
8.3470863670123E+15
Altitude
120239667.67598
Surface area
8.3470863670123E+15
Volume
3.1541704482286E+23
Height
65450185.032884