20138791 is an odd 8-digits composite number following 20138790
and preceding 20138792 . In scientific notation, it is written as 2.0138791 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 19939236 positive integers (up to 20138791) that are relatively prime to 20138791.
20138791 has 6 divisors, whose sum is 20340320
The reverse of 20138791 is 19783102
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred thirty-eight thousand seven hundred ninety-one
Scientific notation
2.0138791 × 10^7
Engineering notation
2.0138791 × 10^6
Prime Factorization
107 × 107 × 1759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
188213
Product of the distinct prime numbers
The prime factorization of 20138791 is 107 × 107 × 1759.
Since it has a total of 3 prime factors.
4 , 3 , 20 , 30 , 196 , 276 , 971 , 2768 , 50928 , 94606 , 640969 , 461799 , 3067377 , 2536951 , 77641899 , 91824613 , 311448904 , 168083553 , 25228992 , 325345865
n×2
40277582
n×3
60416373
n×4
80555164
n×5
100693955
n÷2
10069395.5
n÷3
6712930.3333333
n÷3
5034697.75
n÷5
4027758.2
n2
405570902941681
n3
8.1677076500238E+21
n4
1.6448775731293E+29
n5
3.3125845665838E+36
2 √n
4487.6264327593
3 √n
272.06820935711
4 √n
66.989748713959
5 √n
28.89393416871
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138791 can be divided by 6 positive divisors.
The sum of these divisors (counting 20138791) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110100101100100111
3
Ternary
1101220011020011
4
Quaternary
1030310230213
5
Quinary
20123420131
6
Senary
1555351051
8
Octal
114645447
10
Decimal
20138791
12
Duodecimal
68b2487
16
Hexadecimal
1334b27
20
Vigesimal
65h6jb
36
Base36
bzn6v
md5
b38daa8af32d1eb477402a141895993f
sha1
51ff7fcbaf7b97c3c344c241cdcdd919af9f6e07
sha256
230ecbce78fa947e06bcea9f71fb006c92c8b45f48f471b85e7a1fb9fdf93ba5
sha512
4a892614c209e34028e472b9a0dd962a5aa14a6a308d93136f8842a50d4ff725b6b85725c75dc007b242df375a220aa9dbc3c925f0dbd52a9f83553e1fe20dc6
ripemd-160
99243fd54e415254d3415819a0bd8669a5080781
Diameter
40277582
Circumference
126535755.71556
Area
1.2741385691914E+15
Volume
3.4212813799979E+22
Surface area
5.0965542767655E+15
Circumference
126535755.71556
Perimeter
80555164
Area
405570902941681
Diagonal
28480551.361997
Surface area
2433425417650086
Volume
8.1677076500238E+21
Space diagonal
34881409.215011
Perimeter
60416373
Area
1.7561735249164E+14
Altitude
17440704.607505
Surface area
1.7561735249164E+14
Volume
9.6257357768018E+20
Height
9493517.1206657