20045987 is an odd 8-digits composite number following 20045986
and preceding 20045988 . In scientific notation, it is written as 2.0045987 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 18503976 positive integers (up to 20045987) that are relatively prime to 20045987.
20045987 has 4 divisors, whose sum is 21588000
The reverse of 20045987 is 78954002
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million forty-five thousand nine hundred eighty-seven
Scientific notation
2.0045987 × 10^7
Engineering notation
2.0045987 × 10^6
Prime Factorization
13 × 1541999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20045987
Product of the distinct prime numbers
The prime factorization of 20045987 is 13 × 1541999.
Since it has a total of 2 prime factors.
5 , 9 , 34 , 84 , 204 , 856 , 3362 , 3070 , 15611 , 72664 , 611999 , 518939 , 41530 , 2674508 , 14981382 , 54300560 , 878218693 , 91571161 , 9757453604 , 2585654178
n×2
40091974
n×3
60137961
n×4
80183948
n×5
100229935
n÷2
10022993.5
n÷3
6681995.6666667
n÷3
5011496.75
n÷5
4009197.4
n2
401841594804169
n3
8.0553113855036E+21
n4
1.6147666731476E+29
n5
3.236959173795E+36
2 √n
4477.274505768
3 √n
271.64964894383
4 √n
66.912439095941
5 √n
28.867255018958
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
-20045986
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 20045987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20045987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100011110000010100011
3
Ternary
1101201102220222
4
Quaternary
1030132002203
5
Quinary
20112432422
6
Senary
1553353255
8
Octal
114360243
10
Decimal
20045987
12
Duodecimal
686882b
16
Hexadecimal
131e0a3
20
Vigesimal
655ej7
36
Base36
bxnkz
md5
547923103341b6543c45fbb756842521
sha1
14bca971e036cafa3ccf34c29bef6235e80f079f
sha256
10862786a0ef155bac385d5f5bcf3bf2416d92a42a113a264863d8b61d4d4002
sha512
13e2f79efe2f6fde5a16dd70f76fcf08e49b71e2e15f90175dd955cfaa4836f5c6af9107a16f643a3c3d5dc9ac9ea47f25d20a2deb0b8806ac3b670139275271
ripemd-160
42fd81a6c36c9b9c2973e43ededb959ffba1d92d
Diameter
40091974
Circumference
125952650.98631
Area
1.2624226021436E+15
Volume
3.3742009428102E+22
Surface area
5.0496904085743E+15
Circumference
125952650.98631
Perimeter
80183948
Area
401841594804169
Diagonal
28349306.686555
Surface area
2411049568825014
Volume
8.0553113855036E+21
Space diagonal
34720667.971865
Perimeter
60137961
Area
1.7400251469883E+14
Altitude
17360333.985933
Surface area
1.7400251469883E+14
Volume
9.4932755087647E+20
Height
9449768.8955183