138907 is an odd 6-digits composite number following 138906
and preceding 138908 . In scientific notation, it is written as 1.38907 × 10^5.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 130720 positive integers (up to 138907) that are relatively prime to 138907.
138907 has 4 divisors, whose sum is 147096
The reverse of 138907 is 709831
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 28
Digital Root 1
Name
one hundred thirty-eight thousand nine hundred seven
Scientific notation
1.38907 × 10^5
Engineering notation
1.38907 × 10^3
Prime Factorization
17 × 8171
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138907
Product of the distinct prime numbers
The prime factorization of 138907 is 17 × 8171.
Since it has a total of 2 prime factors.
9 , 10 , 47 , 7 , 275 , 134 , 7298 , 63 , 53502 , 71538 , 844392 , 434738 , 1973463 , 1101577 , 71813009 , 87558393 , 872562535 , 936216196 , 8558542614 , 5349766741
n×2
277814
n×3
416721
n×4
555628
n×5
694535
n÷2
69453.5
n÷3
46302.333333333
n÷3
34726.75
n÷5
27781.4
n2
19295154649
n3
2680232046828643
n4
3.7230299292883E+20
n5
5.1715491838764E+25
2 √n
372.70229406324
3 √n
51.789459352054
4 √n
19.305499062786
5 √n
10.679350154119
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
-138906
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 138907 can be divided by 4 positive divisors.
The sum of these divisors (counting 138907) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111010011011
3
Ternary
21001112201
4
Quaternary
201322123
5
Quinary
13421112
6
Senary
2551031
8
Octal
417233
10
Decimal
138907
12
Duodecimal
68477
16
Hexadecimal
21e9b
20
Vigesimal
h757
36
Base36
2z6j
md5
559dcf86450d923620d257db78be2f4d
sha1
dae842e24ae21229714d0efd9f95489778434102
sha256
a58fc61348f08024d1c5fa9d168811051ffd58777e42e7063045b10f2085e3ea
sha512
d4131bd0aa29c59701eaa3bebb6fa46fe8c776471f33380feb2e68d4761b999c32ffabf5972632f7951718dc3781de928d1c0435128bec7e524ac0a4f3fc3572
ripemd-160
e0062259988840ec0a951c00d2139af858dec6f8
Diameter
277814
Circumference
872778.42146439
Area
60617516095.177
Volume
1.122692974431E+16
Surface area
242470064380.71
Circumference
872778.42146439
Perimeter
555628
Area
19295154649
Diagonal
196444.16330856
Surface area
115770927894
Volume
2680232046828643
Space diagonal
240593.98152697
Perimeter
416721
Area
8355047047.9917
Altitude
120296.99076349
Surface area
8355047047.9917
Volume
3.1586837591101E+14
Height
65481.38776952