20139788 is an even 8-digits composite number following 20139787
and preceding 20139789 . In scientific notation, it is written as 2.0139788 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 9879792 positive integers (up to 20139788) that are relatively prime to 20139788.
20139788 has 12 divisors, whose sum is 35910000
The reverse of 20139788 is 88793102
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred thirty-nine thousand seven hundred eighty-eight
Scientific notation
2.0139788 × 10^7
Engineering notation
2.0139788 × 10^6
Prime Factorization
2 × 2 × 53 × 94999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10069894
Product of the distinct prime numbers
The prime factorization of 20139788 is 2 × 2 × 53 × 94999.
Since it has a total of 4 prime factors.
7 , 3 , 2 , 68 , 244 , 434 , 2274 , 9450 , 45454 , 73711 , 305891 , 172931 , 6791340 , 4832216 , 623578 , 61307481 , 257071617 , 647667766 , 2801670342 , 4104067099
n×2
40279576
n×3
60419364
n×4
80559152
n×5
100698940
n÷2
10069894
n÷3
6713262.6666667
n÷3
5034947
n÷5
4027957.6
n2
405611060684944
n3
8.1689207726499E+21
n4
1.6452033254997E+29
n5
3.3134046192458E+36
2 √n
4487.7375146058
3 √n
272.0726989932
4 √n
66.990577804687
5 √n
28.894220250252
1 , 2 , 4 , 53 , 106 , 212 , 94999 , 189998 , 379996 , 5034947 , 10069894 , 20139788
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20139787
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20139788 can be divided by 12 positive divisors.
The sum of these divisors (counting 20139788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110100111100001100
3
Ternary
1101220012121002
4
Quaternary
1030310330030
5
Quinary
20123433123
6
Senary
1555355432
8
Octal
114647414
10
Decimal
20139788
12
Duodecimal
68b2b78
16
Hexadecimal
1334f0c
20
Vigesimal
65h998
36
Base36
bznyk
md5
1e3197fa521a436095f8e5b6ac0be1fa
sha1
0585afaba3e4aca8d5afda8cd2e5cf55fa69e8eb
sha256
d270f56ba0c7cbf2a01509fe3bff31264c9835b58085f7bec7770eb4875ad8ae
sha512
fd7ff29c44681b442d6e6e87737884021afb18951248f06f8b1fc4596dd8e707acedf0eee1c93e2946da906e03f1306e209b97d65e2a1b08f54168b133d70ed5
ripemd-160
72b15ba4b3ec8ea08f7c9bfb5d7322124947a42d
Diameter
40279576
Circumference
126542020.05131
Area
1.2742647284626E+15
Volume
3.4217895316152E+22
Surface area
5.0970589138503E+15
Circumference
126542020.05131
Perimeter
80559152
Area
405611060684944
Diagonal
28481961.332919
Surface area
2433666364109664
Volume
8.1689207726499E+21
Space diagonal
34883136.069666
Perimeter
60419364
Area
1.7563474130456E+14
Altitude
17441568.034833
Surface area
1.7563474130456E+14
Volume
9.6271654555273E+20
Height
9493987.110973