138791 is an odd 6-digits composite number following 138790
and preceding 138792 . In scientific notation, it is written as 1.38791 × 10^5.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 135792 positive integers (up to 138791) that are relatively prime to 138791.
138791 has 4 divisors, whose sum is 141792
The reverse of 138791 is 197831
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2
Name
one hundred thirty-eight thousand seven hundred ninety-one
Scientific notation
1.38791 × 10^5
Engineering notation
1.38791 × 10^3
Prime Factorization
47 × 2953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138791
Product of the distinct prime numbers
The prime factorization of 138791 is 47 × 2953.
Since it has a total of 2 prime factors.
7 , 3 , 39 , 94 , 99 , 388 , 1626 , 2535 , 12290 , 82999 , 694444 , 853331 , 891410 , 8140092 , 30030790 , 32361990 , 659427409 , 231084506 , 7810945437 , 3428434086
n×2
277582
n×3
416373
n×4
555164
n×5
693955
n÷2
69395.5
n÷3
46263.666666667
n÷3
34697.75
n÷5
27758.2
n2
19262941681
n3
2673522938847671
n4
3.7106092220561E+20
n5
5.1499916453838E+25
2 √n
372.54664137528
3 √n
51.775039031617
4 √n
19.301467337363
5 √n
10.677565911955
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
-138790
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 138791 can be divided by 4 positive divisors.
The sum of these divisors (counting 138791) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111000100111
3
Ternary
21001101102
4
Quaternary
201320213
5
Quinary
13420131
6
Senary
2550315
8
Octal
417047
10
Decimal
138791
12
Duodecimal
6839b
16
Hexadecimal
21e27
20
Vigesimal
h6jb
36
Base36
2z3b
md5
c3e341724400466518024a2ce72c8489
sha1
75b57a622dc3335394f7260e1369f821f8f40e9d
sha256
916e61f592934f4ecb9f6cfd4d9d8202935d84cc75772f13e5f1ec2ffedf7953
sha512
40c1d3041a4839b38d35b80eb7df7a764e9b46c54b0fce94ad616b1913b103fc8f763ce9da65d075d840be30c199958dcf39da1815e7f0bf0af027b7243a682f
ripemd-160
63217464e649c7f5dbbe98ad3f95e99137912459
Diameter
277582
Circumference
872049.57196876
Area
60516316071.558
Volume
1.1198826698517E+16
Surface area
242065264286.23
Circumference
872049.57196876
Perimeter
555164
Area
19262941681
Diagonal
196280.11453532
Surface area
115577650086
Volume
2673522938847671
Space diagonal
240393.06363329
Perimeter
416373
Area
8341098423.6821
Altitude
120196.53181665
Surface area
8341098423.6821
Volume
3.1507769995283E+14
Height
65426.704845108