20138785 is an odd 8-digits composite number following 20138784
and preceding 20138786 . In scientific notation, it is written as 2.0138785 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 16074240 positive integers (up to 20138785) that are relatively prime to 20138785.
20138785 has 8 divisors, whose sum is 24221736
The reverse of 20138785 is 58783102
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred thirty-eight thousand seven hundred eighty-five
Scientific notation
2.0138785 × 10^7
Engineering notation
2.0138785 × 10^6
Prime Factorization
5 × 461 × 8737
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20138785
Product of the distinct prime numbers
The prime factorization of 20138785 is 5 × 461 × 8737.
Since it has a total of 3 prime factors.
3 , 4 , 77 , 95 , 54 , 954 , 9123 , 4411 , 87534 , 56807 , 560551 , 982457 , 8104890 , 967132 , 96883458 , 12927678 , 264699119 , 772357859 , 5330698665 , 7442585459
n×2
40277570
n×3
60416355
n×4
80555140
n×5
100693925
n÷2
10069392.5
n÷3
6712928.3333333
n÷3
5034696.25
n÷5
4027757
n2
405570661276225
n3
8.1677003497497E+21
n4
1.6448756128803E+29
n5
3.312579631954E+36
2 √n
4487.6257642544
3 √n
272.06818233779
4 √n
66.989743724352
5 √n
28.893932447022
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20138784
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20138785 can be divided by 8 positive divisors.
The sum of these divisors (counting 20138785) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100101100100001
3
Ternary
1101220011012221
4
Quaternary
1030310230201
5
Quinary
20123420120
6
Senary
1555351041
8
Octal
114645441
10
Decimal
20138785
12
Duodecimal
68b2481
16
Hexadecimal
1334b21
20
Vigesimal
65h6j5
36
Base36
bzn6p
md5
dc481531cf10001133bb51850406ce76
sha1
4e08f94b615bc066ca713b5e676b7504af4d50b1
sha256
21fec465c71bb03cb7c41cbf1e7f1526a1e6595d8d2d350c04e78b9064f78e57
sha512
4e8453667df5b7ce727008270ece2e7e9cb7bc11144bdf19832c4bebd935934e93b07a971390a119db304007c0f9dea8b7213ee376a38af4fc4ffc95ce60257a
ripemd-160
31f6183664992e0589293e9ad3d25ee58ed82399
Diameter
40277570
Circumference
126535718.01645
Area
1.2741378099769E+15
Volume
3.4212783220662E+22
Surface area
5.0965512399078E+15
Circumference
126535718.01645
Perimeter
80555140
Area
405570661276225
Diagonal
28480542.876716
Surface area
2433423967657350
Volume
8.1677003497497E+21
Space diagonal
34881398.822706
Perimeter
60416355
Area
1.7561724784743E+14
Altitude
17440699.411353
Surface area
1.7561724784743E+14
Volume
9.6257271733463E+20
Height
9493514.2922386