20787142 is an even 8-digits composite number following 20787141
and preceding 20787143 . In scientific notation, it is written as 2.0787142 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 9979200 positive integers (up to 20787142) that are relatively prime to 20787142.
20787142 has 16 divisors, whose sum is 32436000
The reverse of 20787142 is 24178702
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million seven hundred eighty-seven thousand one hundred forty-two
Scientific notation
2.0787142 × 10^7
Engineering notation
2.0787142 × 10^6
Prime Factorization
2 × 29 × 199 × 1801
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20787142
Product of the distinct prime numbers
The prime factorization of 20787142 is 2 × 29 × 199 × 1801.
Since it has a total of 4 prime factors.
9 , 3 , 33 , 59 , 792 , 723 , 5441 , 6730 , 42521 , 80469 , 872923 , 942963 , 2512832 , 326239 , 47534626 , 33192757 , 142546932 , 745703986 , 7244244372 , 8316693425
n×2
41574284
n×3
62361426
n×4
83148568
n×5
103935710
n÷2
10393571
n÷3
6929047.3333333
n÷3
5196785.5
n÷5
4157428.4
n2
432105272528164
n3
8.9822336589916E+21
n4
1.8671496654664E+29
n5
3.8812705231302E+36
2 √n
4559.2918309755
3 √n
274.95709303029
4 √n
67.522528321853
5 √n
29.077626686824
1 , 2 , 29 , 58 , 199 , 398 , 1801 , 3602 , 5771 , 11542 , 52229 , 104458 , 358399 , 716798 , 10393571 , 20787142
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20787141
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20787142 can be divided by 16 positive divisors.
The sum of these divisors (counting 20787142) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010010111111000110
3
Ternary
1110010002121011
4
Quaternary
1033102333012
5
Quinary
20310142032
6
Senary
2021312434
8
Octal
117227706
10
Decimal
20787142
12
Duodecimal
6b6571a
16
Hexadecimal
13d2fc6
20
Vigesimal
69i7h2
36
Base36
cdjgm
md5
720d3614fbc0f3d199ad6de253a9dad4
sha1
63d750bd64afcda7a02efe162569bb3677421928
sha256
dadfe8cab8cc34523b3043299da8add1211220f468894367fff668e41b7314d4
sha512
9f1804cb62710bb2cbf9d5cfe55c6615b5afacee52d3604a9965f28ad7b5cd6880152b69f78dfe5d017a518cedba6c75be27d1b8fa5929548928819231fab1dd
ripemd-160
0af4ea830339ed04d4fd5ab92c6d10f6f2900a3c
Diameter
41574284
Circumference
130609465.19266
Area
1.3574987497519E+15
Volume
3.7624692367887E+22
Surface area
5.4299949990076E+15
Circumference
130609465.19266
Perimeter
83148568
Area
432105272528164
Diagonal
29397458.139375
Surface area
2592631635168984
Volume
8.9822336589916E+21
Space diagonal
36004386.088149
Perimeter
62361426
Area
1.8710707155929E+14
Altitude
18002193.044074
Surface area
1.8710707155929E+14
Volume
1.0585663884125E+21
Height
9799152.7131251